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jamie sends in a story about an unexpected finding by the Phoenix Mars Lander which has shed new light on experiments done by the Viking landers back in 1976. The Viking experiments found traces of chlorine compounds that were interpreted to be the result of contamination from cleaning fluids on Earth. In 2008, an experiment done by Phoenix found percholates in the soil, which came as a surprise to researchers. After doing tests on similar soil from Chile, a new study has found that those percholates, paired with organic molecules, could very well be the source of the chlorine compounds detected by Viking. While this is not direct evidence for life on Mars, the fact that complex organic compounds can apparently persist in the Martian soil gives researchers a new avenue to pursue while looking for that evidence.

An anonymous reader lets us know about the initial release of data from the Kepler spacecraft, launched in the spring of 2009, which has been hunting extrasolar planets. The instrument has found 752 candidates to examine in its first 43 days of operation. This is exciting news, because even if only half of the possibilities pan out as exoplanets (as the Kepler team expects) the results would still almost double the count of known planets. And some of the new ones could be Earth-sized, or not too much larger. Controversy has erupted however because NASA has decided to allow the Kepler team to withhold 400 of the best candidates for its own examination, releasing about 350 others to the worldwide community. The reasons for this are complicated and the New York Times does a good job of digging into the issue of proprietary vs. public data. Nature.com first reported two months ago on the decision to hold back some of the data.

shogun writes "The National Oceanic and Atmospheric Administration reports a strong geomagnetic storm is in progress. The shuttle, ISS and GPS systems may be affected." They think this storm was caused by a weak solar flare on April 3rd. As you may expect, this has caused some unusually impressive northern lights since it started. What you may not expect is a photograph from Japanese astronaut Soichi Noguchi aboard the International Space Station showing the aurora from orbit. He apparently tweets a lot of pictures from space. He and his crewmates have taken over 100,000 pictures since coming aboard the ISS.

Nancy_A writes "There might be a new favorite hang-out for astronauts aboard the International Space Station later this year. The Leonardo Multi Purpose Logistics Module (MPLM) will become a permanent module on the station, and will be brought up on the STS-133 mission, scheduled for September 2010. The new module might provide a haven for astronauts to get away from it all. '"The thought is, the PMM might become sort of a 'man cave,'" said Mike Kinslow, the Boeing payload manager at the Kennedy Space Center. "It won't have all the background noise of fans, computers and other equipment running like in the laboratories, so it will be a quieter atmosphere that might appeal to the astronauts during their off-duty hours."' Plus, NASA's Robonaut 2, or R2 will be brought up on the same flight. Any chance R2 could be programmed to serve drinks or bring food into the man cave?"

thomst passes along news out of the recent AAAS meeting of a new explanation for pulsar beams that involves faster-than-light currents. Here are Los Alamos's press release and three related papers on the arXiv. "The new model explains the beam emissions from pulsars as products of superluminal currents within the spinning neutron stars' atmospheres. According to the authors' model, the current generated is, itself, faster than light, although the particles that compose it never individually exceed the universal speed limit, thereby preventing Einsteinian post-mortem rotation. The new model is a general explanation of the phenomenon of pulsar beam emissions that explains emissions at all observed frequencies (and different pulsars emit everything from radio waves to x-rays), which no previous model has done."

xp65 writes "A previously undiscovered asteroid came within 14,000 km of Earth — just over one Earth diameter, 1/30 the lunar distance — on Friday, and astronomers noticed it only 15 hours before closest approach. On Nov. 6 at around 16:30 EST, a 7-meter asteroid, now called 2009 VA, came only about 2 Earth radii from impacting our planet. This is the third-closest known non-impacting Earth approach on record for a cataloged asteroid. The asteroid was discovered by the Catalina Sky Survey and was quickly identified by the Minor Planet Center in Cambridge MA as an object that would soon pass very close to the Earth. JPL's Near-Earth Object Program Office also computed an orbit solution for this object, and determined that it was not headed for an impact." The article notes, "On average, objects the size of 2009 VA pass this close about twice per year and impact Earth about once every 5 years."

Dagondanum writes "Multiple missions have been sent to Mars with the hopes of testing the surface of the planet for life — or the conditions that could create life. The question of whether life in the form of bacteria (or something even more exotic) exists on Mars is hotly debated, and still lacks a definitive yes or no. Experiments done right here on Earth that simulate the conditions on Mars and their effects on terrestrial bacteria show that it is entirely possible for certain strains of bacteria to weather the harsh environment of Mars." Perhaps this is something that will be tested further in a few years by the Mars Science Lab, also known as "Curiosity" and (as reader Nova1021 points out) "the Mars Action Hero."

Nancy Atkinson writes "Even though the Spirit rover is stuck in loose soil on Mars, she has an overabundance of electrical power due to a wind event that cleaned off her solar panels. While MER scientists and engineers are having the rover take pictures of her surroundings in an effort to figure a way to get her dislodged, there also is enough power (since the rover isn't moving anywhere) to do something extra: keep the rover 'awake' at night and run her heaters so she can take images of the night sky on Mars. 'Certainly, a month or more ago, no one was considering astronomy with the rovers,' said Mark Lemmon, planetary scientist at Texas A&M University and member of the rover team. 'We thought that was done. With the dust cleanings, though, everyone thinks it is better to use the new found energy on night time science than to just burn it with heaters.'"

Nancy Atkinson writes "Even though the Spirit rover is stuck in loose soil on Mars, she has an overabundance of electrical power due to a wind event that cleaned off her solar panels. While MER scientists and engineers are having the rover take pictures of her surroundings in an effort to figure a way to get her dislodged, there also is enough power (since the rover isn't moving anywhere) to do something extra: keep the rover 'awake' at night and run her heaters so she can take images of the night sky on Mars. 'Certainly, a month or more ago, no one was considering astronomy with the rovers,' said Mark Lemmon, planetary scientist at Texas A&M University and member of the rover team. 'We thought that was done. With the dust cleanings, though, everyone thinks it is better to use the new found energy on night time science than to just burn it with heaters.'"

Nancy Atkinson writes "Using a technique called pixel-lensing, a group of astronomers in Italy may have detected a planet orbiting another star. But this planet is unique among the 300-plus exoplanets discovered so far, as it and its parent star are in another galaxy. The Andromeda Galaxy, to be exact. Technically, the star in M31 was found to have a companion about 6 times the mass of Jupiter, so it could be either a brown dwarf or a planet. But either way, this is a remarkable feat, to find an object of that size in another galaxy."

Nancy Atkinson writes "Using a technique called pixel-lensing, a group of astronomers in Italy may have detected a planet orbiting another star. But this planet is unique among the 300-plus exoplanets discovered so far, as it and its parent star are in another galaxy. The Andromeda Galaxy, to be exact. Technically, the star in M31 was found to have a companion about 6 times the mass of Jupiter, so it could be either a brown dwarf or a planet. But either way, this is a remarkable feat, to find an object of that size in another galaxy."

Nancy Atkinson writes "Why is the James Webb Space Telescope (scheduled to launch in 2013) taking so long to build? Hasn't it had a huge cost over-run and several delays? Nobel Prize winner John Mather is the Project Scientist for JWST, and he addresses these questions and more in an in-depth interview, one of the few he's given about this next-generation telescope and successor to the Hubble Space Telescope. Quoting: 'The hardest thing to build was the mirror, because we needed something that is way bigger than Hubble. But you can't possibly lift something that big or fit it into a rocket, so you need something that is lighter weight but nonetheless larger, so it has to have the ability to fold up. The mirror is made of light-weight beryllium, and has 18 hexagonal segments. The telescope folds up like a butterfly in its chrysalis and will have to completely undo itself. It's a rather elaborate process that will take many hours. The telescope is huge, at 6.5 meters (21 feet), so it's pretty impressive.'"

alevy writes to mention that scientists at Fermilab have detected a new, completely untheorized particle. Seems like Fermi has been a hotbed of activity lately with the discovery of a new single top quark and narrowing the gap twice on the Higgs Boson particle. "The Y(4140) particle is the newest member of a family of particles of similar unusual characteristics observed in the last several years by experimenters at Fermilab's Tevatron as well as at KEK and the SLAC lab, which operates at Stanford through a partnership with the U.S. Department of Energy. 'We congratulate CDF on the first evidence for a new unexpected Y state that decays to J/psi and phi,' said Japanese physicist Masanori Yamauchi, a KEK spokesperson. 'This state may be related to the Y(3940) state discovered by Belle and might be another example of an exotic hadron containing charm quarks. We will try to confirm this state in our own Belle data.'"

Nancy Atkinson writes "A new company, Space Energy, Inc., says they have developed what they call a 'rock-solid business platform' and they should be able to provide commercially available space based solar power within a decade. 'Although it's a very grandiose vision, it makes total sense,' Space Energy's Peter Sage told Universe Today. 'We're focused on the fact that this is an inevitable technology and someone is going to do it. Right now we're the best shot. We're also focused on the fact that, according to every scenario we've analyzed, the world needs space based solar power, and it needs it soon, as well as the up-scaling of just about every other source of renewable energy that we can get our hands on.'"

Nancy Atkinson writes "A new company, Space Energy, Inc., says they have developed what they call a 'rock-solid business platform' and they should be able to provide commercially available space based solar power within a decade. 'Although it's a very grandiose vision, it makes total sense,' Space Energy's Peter Sage told Universe Today. 'We're focused on the fact that this is an inevitable technology and someone is going to do it. Right now we're the best shot. We're also focused on the fact that, according to every scenario we've analyzed, the world needs space based solar power, and it needs it soon, as well as the up-scaling of just about every other source of renewable energy that we can get our hands on.'"

AtariKee writes "Universe Today is reporting that a small 10m asteroid, discovered earlier this month and named 2009 BD, is passing within 400,000 miles of Earth. Although the asteroid poses no threat to the planet, the site reports that the asteroid is still very interesting, as it may be a rare co-orbital asteroid (as in, shares the same orbit as Earth)."

brink2012 writes "Planum Boreum, Mars' north polar cap contains water ice 'of a very high degree of purity,' according to an international study. Using radar data from the SHARAD (SHAllow RADar) instrument on board the Mars Reconnaissance Orbiter (MRO), French researchers say the data point to 95 percent purity in the polar ice cap. The north polar cap is a dome of layered, icy materials, similar to the large ice caps in Greenland and Antarctica, consisting of layered deposits, with mostly ice and a small amount of dust. Combined, the north and south polar ice caps are believed to hold the equivalent of two to three million cubic kilometers (0.47-0.72 million cu. miles) of ice, making it roughly 100 times more than the total volume of North America's Great Lakes, which is 22,684 cu. kms (5,439 miles). The study was done by researchers at France's National Institute of Sciences of the Universe (Insu), using the Italian built SHARAD radar sounder on the US built MRO. SHARAD looks for liquid or frozen water in the first few hundreds of feet (up to 1 kilometer) of Mars' crust by using subsurface sounding. It can detect liquid water and profile ice. Mars southern polar cap was once thought to be carbon dioxide ice, but ESA's Mars Express confirmed that it is composed of a mixture of water and carbon dioxide. The study on Mars north polar cap appears in the journal Geophysical Research Letters, published by the American Geophysical Union."

RobGoldsmith writes "The TAAS Company have released details on their new Orbital Space Plane. The new design has many attributes to set it apart from its rivals. One highlight is the integrated Safety System; this is where an escape vehicle can eject from the main body of the craft then fly home safely. They claim: 'With the system's performance capability, economical first stage tow and independence from ground launch facilities, it can offer the lowest price. It also offers the safest flight.' Could this spaceship rival Virgin Galactic's SpaceShipTwo?" Reader wooferhound points out related news from XCOR Aerospace (which we've discussed previously), that they're beginning to take orders for seats on their own suborbital flights, with test runs planned for 2010. Seats will be going for around $95,000 each, less than half the cost of the first tickets for SpaceShipTwo.

William Robinson writes "After an 18-day journey, Chandrayaan-1, the moon mission of India, has entered Lunar orbit. The maneuver was described as crucial and critical by scientists, who pointed out that at least 30 per cent of similar moon missions had failed at this juncture, resulting in spacecraft lost to outer space. The lunar orbit insertion placed Chandrayaan-1 in an elliptical orbit with its nearest point 400 to 500 kilometers away from the moon, and the farthest, 7,500 kilometers. By November 15, the spacecraft is expected to be orbiting the moon at a distance of 100 kilometers and sending back data and images (the camera was tested with shots looking back at Earth). The Chandrayaan-1 is also scheduled to send a probe to the moon's surface."

stiller writes "British scientists from the Rutherford Appleton Laboratory have developed an experimental set-up in which a $20 magnet is used to deflect solar-wind-like radiation." Reader Dersaidin points out a slightly more enthusiastic article at Universe Today which emphasizes the possibilities of systems based on this phenomenon to protect astronauts during solar storms, writing "It's a good start. Hopefully, later versions will be able to protect spaceships from energy weapons. A beam from the LHC can melt a 500kg block of copper. Shields, check. Energy weapons, check. Now we just need a viable interstellar drive, and an energy source to power it all."

UniverseToday has an interesting look at geomagnetic reversal, the process in which the Earth's magnetic poles trade places. The article cites known trends and recent studies to debunk doomsday myths and unsubstantiated claims about the process. One such study is attempting to model the earth's core with a 26-ton ball of molten metal. Another recently found evidence that the Earth has a second, weaker magnetic field. "We do know that this magnetic pole flip-flop has occurred many times in the last few million years; the last occurred 780,000 years ago according to ferromagnetic sediment. A few scaremongering articles have said geomagnetic reversal occurs with 'clockwork regularity' — this is simply not true."

Veeoh writes "FTA: It would appear that the US President has been briefed by Phoenix scientists about the discovery of something more 'provocative' than the discovery of water existing on the Martian surface. This news comes just as the Thermal and Evolved Gas Analyzer (TEGA) confirmed experimental evidence for the existence of water in the Mars regolith on Thursday."

xaositects writes "Now I know all of you have your 3D glasses from 1985 still, so don them once again to check out these cool 3D images of Mars's Arctic landscape from the Phoenix Lander's stereoscopic imager. There are also a few close-ups of the parts of Phoenix that are in view and a link to more pictures on the Phoenix Image Gallery."

Geoffrey.landis writes "Some of you may have heard me talk about colonizing Venus. Well, for those who haven't, Universe Today is running story about floating cities on Venus. It's a reasonable alternative for space colonies — after all, the atmosphere of Venus (at about 50 km) is the most Earth-like environment in the solar system (other than Earth, of course). '50 km above the surface, Venus has air pressure of approximately 1 bar and temperatures in the 0C-50C range, a quite comfortable environment for humans. Humans wouldn't require pressurized suits when outside, but it wouldn't quite be a shirtsleeves environment. We'd need air to breathe and protection from the sulfuric acid in the atmosphere.'"

wooferhound writes "In a move to make the heavy-lift vehicle more robust (predicting an increased launch thrust requirement) to send four astronauts, a lunar lander plus supplies, NASA has announced the Ares V rocket will be beefed up to cater for our future needs to get man back to the Moon. This huge vehicle is now designed to carry payloads of over 156,600 lb (71,000 kg), some 15,600 lb (or 10%) more than the original concept. Ares V was originally designed to be approximately the same length as the original Saturn V lunar rocket (361 feet or 110 metres long), but to accommodate an extra booster engine and extra payload volume, Ares V will be 381 feet (116 metres) long. This upgrade will be capable of sending far more instrumentation into space, an extra 15,600 lb (7,000 kg, or the equivalent mass of a male African elephant)."

fyc brings us some information from Universe Today about what happened to Soyuz TMA-11 when it re-entered the atmosphere late last week. Reports indicate that a failure of explosive bolts to separate the Soyuz modules delayed the re-entry and oriented the capsule so the hatch was taking most of the heat, rather than the heat shields. CNN reports that the crew was in 'severe danger.' They experienced forces of up to 8.2 gravities. NASA officials have voiced their approval of how Russia handled the crisis. They expect to rely heavily on Soyuz spacecraft once the shuttles are retired in 2010.

alexj33 writes "Will humans ever really go to Mars? Let's face it, the obstacles are quite daunting. Not only are there numerous, difficult, technical issues to overcome, but the political will and perseverance of any one nation to undertake such an arduous task is huge. However, one former NASA engineer believes a human mission to Mars is quite possible, and such an event would unify the world as never before. But Jim McLane's proposal includes a couple of major caveats: the trip to Mars should be one-way, and have a crew of only one person."

Reservoir Hill writes "Work is progressing on the design of the new Orion Crew Exploration Vehicle (CEV), the next generation of NASA spacecraft that will take humans to the International Space Station, back to the Moon, and hopefully on to Mars. One major question about the spacecraft has yet to be answered. On returning to Earth, should the CEV land in water or on terra firma? After initial studies, the first assessment by NASA and the contractor for the CEV, Lockheed Martin, was that landing on land was preferred in terms of total life cycle costs for the vehicles. Getting the CEV light enough for the Ares rockets to be able to launch it, and therefore eliminating the 1500 lb airbags for landing has its appeal. A splashdown in water seems to be favored."

Jamie found a story of NASAs Giant "Science" Roller Coaster. It will be used as an escape chute on rocket launchpads, and will be the 3rd highest drop in the world. More like the Cedar Point Demon Drop than a roller coaster, but still, I'd ride it.

OriginalArlen writes "Universe Today has a fascinating article discussing the difficulty of executing EDL (entry, descent, landing) on Mars for vehicles bigger than MER, Viking and Pathfinder, and the challenges for manned craft in particular. Airbags can't be used for obvious reasons, but the atmosphere is too thin to be used for parachutes or aerobraking by large heavy vehicles. The stronger gravity (compared to the moon) makes an Apollo-style powered descent impossible. The best current idea is a huge inflatable torus called a hypercone: 'Imagine a huge donut with a skin across its surface that girdles the vehicle and inflates very quickly with gas rockets (like air bags) to create a conical shape. This would inflate about 10 kilometers above the ground while the vehicle is traveling at Mach 4 or 5, after peak heating. The Hypercone would act as an aerodynamic anchor to slow the vehicle to Mach 1.'"

OriginalArlen writes "UniverseToday reports new research which suggests dark matter could have condensed to form 'dark stars' in the early universe. These stars would have been very massive and burned very slowly, fueled by non-fusion reactions, they could still be with us. Astronomers hope to better constrain theories of early galaxy and star formation with observations of gravitational lensing events caused by these ghosts of the primordial universe."

This Week In Science writes "When Pluto's moon, Charon, occulted a distant star on July 11, 2005 two groups of astronomers were there to witness the fleeting moment. Based on what they saw, the scientists were able to determine that Charon has very little atmosphere, has a radius of 605 km, and is about 1.7 times denser than water. The density calculation implies that Pluto and Charon were once two separate proto-planets that because of a chance encounter are now bound by gravity."

Fraser Cain writes "Universe Today has released a free, downloadable PDF book for its What's Up this Week astronomy column. This 400+ page ebook has an entry for what you can see in the night sky every day in 2006, as well as additional information on choosing equipment, viewing conditions, and additional resources."

Fraser Cain writes "Universe Today has released a free, downloadable PDF book for its What's Up this Week astronomy column. This 400+ page ebook has an entry for what you can see in the night sky every day in 2006, as well as additional information on choosing equipment, viewing conditions, and additional resources."

Fraser Cain writes "Universe Today has released a free, downloadable PDF book for its What's Up this Week astronomy column. This 400+ page ebook has an entry for what you can see in the night sky every day in 2006, as well as additional information on choosing equipment, viewing conditions, and additional resources."

Fraser Cain (Mark Mortimer) writes "Hacking sounds crass. It manifests images of short cuts, jobs poorly done and people most interested in just finishing, no matter what. In the computer industry, sometimes this perfectly portrays hackers. However, for an expert, a hack is the complete opposite. It's a beautiful, well thought resolution that uses minimal effort. Often only those in the know truly appreciate it. Robert and Barbara Thompson in their book, Astronomy Hacks compile tips and techniques for observing the night sky. Their methods seem simple, yet they include detail to show they are experts who are presenting hacks derived from years worth of knowledge." Read on for the rest of Mark's review. Astronomy Hacks - Tips & Tools for Observing the Night Sky author Robert Bruce Thompson and Barbara Fritchman Thompson pages 388 publisher O'Reilly Media Inc. rating 8 reviewer Mark Mortimer ISBN 0596100604 summary Hacking your telescope

This hack book can be taken two ways. One is as a reference to look up solutions to problems or seek a reference for a better method. Two is as a complete back grounder for the beginner and higher level amateur astronomer. Within it are 65 distinct hacks grouped into four chapters; Getting Started, Observing Hacks, Scope Hacks and Accessory Hacks. No embellishments obscure the text. There are only the hacks, each relating to astronomy the same way a Clymers manual refers to motorcycle repairs. No extenuating plots nor complex character development obstructs the wording. This book just lists lots of techniques, hints and recommendations.

The first chapter, Getting Started, has enough detail to guide the beginner or assist the intermediate practitioner. The standard encapsulation of binocular and telescope types ensues. To provide an example of the depth of detail, consider the binocular. The discussion includes; magnification, aperture, exit pupil, eye relief, field of view, interpupilary distance, prism type and lens coatings. A summary list recommends choices for various budget ranges ($75 to $5000) and gives recommendations on certain manufacturers and models.

The telescope selection hack is equally detailed, with descriptions of the three main types; reflector, refractors and catadioptric as well as criteria and recommendations. The authors are admitted fans of Dobsonian telescopes and tend to give more attention to this type both here and elsewhere in the book.

Safety, as the basis of its own hacks, or as a backdrop for many other hacks, appears throughout. Most is for personal safety, whether by staying in groups or not dropping large, heavy mirrors on toes. Perhaps the recommendations to bring a firearm for protection against four legged predators goes a bit far. The repeated references to courtesy for group viewing is just one of the many indicators of the wealth of the author's experience.

The chapter on observing hacks includes, among others, the principles of light, a comprehensive biological description of our eyes' receivers, and a method for running a Messier Marathon. This chapter revolves around the purpose or goals of amateur astronomers. Accepting that these aren't planning on detecting new stars or planets, the authors clearly convey the simple pleasures of viewing. Whether a person is taking copious notes, simple sketches or photographs, the rewards are many and admittedly differ with each person. Simple hacks to improve style or refine goals aid in refining the reward.

The scope hacks essentially look at scope maintenance, and they can get complex. There are step-by-step cleaning instructions for a 10-pound mirror, including swishing it under the faucet for minutes. The same goes for collimation, with its consideration of Strehl values and diffraction spikes. The reasoning and the simple instructions convince and empower the reader to take charge of his viewing capabilities.

The last chapter, Accessories Hacks, is chock full of the little tips to branching out in one's astronomy experience. Eyepieces and filters get a thorough treatment. Light-proofing your vehicle or using software to build custom star charts round out the suggestions.

In all, whether as a reference or as an introductory read, this book delivers. The background and justification for the hacks give sufficient information to believe in their value without overtaxing the brain. Neat hints, like keeping red pens away from night sites, help any observer from committing blunders. The table of contents and index simply and easily guide readers. While sketches, illustrations and photographs clarify many of the subtle points. There's even a note on the proper pronunciation of Greek letters.

With simple prose copiously sprinkled with personal, humorous anecdotes, the reading is a pleasure. Many references to manufacturers and equipment costs aid in selections today, though they probably won't stand the test of time. As well, there is very little on astro-photography. The authors simply say that this activity demands much practice and much equipment. Fair enough, but given the upsurge in computer literates, this area cries for more information.

Reading car repair manuals helps fix a car's problem or learn more about fixing cars in general. The same can be said for Astronomy Hacks. Each hack includes details, hints and tips to embellish a viewer's night time activities. Most of all it ably empowers you to take charge of your hobby and make the most of astronomical viewing.

You can purchase Astronomy Hacks from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

Fraser Cain writes "NASA's Institute for Advanced Concepts (NIAC) has funded a proposal to explore the idea of a robotic probe that could melt its way through the polar icecaps on Mars or ice covering Europa's ocean. A swarm of these these 100 kg probes would sample pockets of air in the ice as they maneuvered around in formation, searching for evidence of life - either past or present."

Fraser Cain writes "NASA's Institute for Advanced Concepts (NIAC) has funded a proposal to explore the idea of a robotic probe that could melt its way through the polar icecaps on Mars or ice covering Europa's ocean. A swarm of these these 100 kg probes would sample pockets of air in the ice as they maneuvered around in formation, searching for evidence of life - either past or present."

Fraser Cain writes "One of the dozen technologies selected by NASA's Institute for Advanced Concepts (NIAC) this year is Positronics Research's ideas for an antimatter rocket engine. Instead of 3100 kg of propellant on board Cassini, the spacecraft could get by with just 310 micrograms of electrons and positrons. Of course, making the antimatter can be expensive."

Fraser Cain writes "One of the dozen technologies selected by NASA's Institute for Advanced Concepts (NIAC) this year is Positronics Research's ideas for an antimatter rocket engine. Instead of 3100 kg of propellant on board Cassini, the spacecraft could get by with just 310 micrograms of electrons and positrons. Of course, making the antimatter can be expensive."

Fraser Cain writes "Scientists at the University of Maryland think that large quantities of artificial meat could be produced to supply the world with animal-free meat products, like chickenless nuggets. This is based on experiments for NASA, that created small amounts of fish protein cultured from single cells. According to the researchers, larger quantities could be grown in thin sheets and then stacked up to create thickness. Of course, they need to figure out a way to exercise it to make it taste like regular meat."

Fraser Cain writes "Scientists at the University of Maryland think that large quantities of artificial meat could be produced to supply the world with animal-free meat products, like chickenless nuggets. This is based on experiments for NASA, that created small amounts of fish protein cultured from single cells. According to the researchers, larger quantities could be grown in thin sheets and then stacked up to create thickness. Of course, they need to figure out a way to exercise it to make it taste like regular meat."

Fraser Cain writes "Astronomers have discovered a rocky, terrestrial planet orbiting a nearby star, Gliese 876. The planet has approximately 7.5 times the mass of the Earth, double its radius, and orbits its parent star once every two days. This is the most Earthlike extrasolar planet discovered so far." Reader Karthik Narayanaswami points out that "the planet was discovered by the famed Berkeley astronomer Geoff Marcy," and adds a link to the news release from Berkeley.

Fraser Cain writes "Astronomers have discovered a rocky, terrestrial planet orbiting a nearby star, Gliese 876. The planet has approximately 7.5 times the mass of the Earth, double its radius, and orbits its parent star once every two days. This is the most Earthlike extrasolar planet discovered so far." Reader Karthik Narayanaswami points out that "the planet was discovered by the famed Berkeley astronomer Geoff Marcy," and adds a link to the news release from Berkeley.

FleaPlus writes "The Seattle Post-Intelligencer and Universe Today report that the LiftPort Group, a consortium dedicated to commercially developing and constructing a space elevator, will be opening a carbon nanotube manufacturing plant in June of this year. The new facility has been dubbed LiftPort Nanotech. Many expect the LiftPort Group to be a front-runner in NASA's recently-announced Centennial Challenges competitions for space elevator technologies, which begin in September of this year."

Fraser Cain writes "Universe Today is reporting on the discovery of a nearly perfect Einstein Ring; a gravitational lens of a nearby galaxy working as a natural telescope to focus the light from a more distant galaxy. Gravitational lenses have been seen many times before, but never so complete, with a close lensing galaxy and a distant magnified galaxy."

Fraser Cain writes "Universe Today is reporting on the discovery of a nearly perfect Einstein Ring; a gravitational lens of a nearby galaxy working as a natural telescope to focus the light from a more distant galaxy. Gravitational lenses have been seen many times before, but never so complete, with a close lensing galaxy and a distant magnified galaxy."

Rollie Hawk writes "Three years ago, light from V838 Monocerotis (a star about 20,000 light years from us) reached the Earth that showed the star exploding. The more politically correct term for what happened is "stellar outburst." In the time since, images from a pulse of light released during the outburst have been arriving here on Earth. In October of 2004, Hubble captured a beautiful image of the scene with the pulse lighting up interstellar gasses that encapsulated the area around this red giant (a star 600,000 times brighter than our Sun). The release of this photo just days ago seems rather timely, as it appears that some of Hubble's funding may be cut in the near future. There is also talk of eliminating the program entirely."

Fraser Cain writes "Universe Today is reporting on a proposal under consideration by NASA from Dr. Robert Angel at the University of Arizona. He wants to build a 100-meter liquid mirror telescope into a crater on the Moon. It would only be able to look at a specific spot in the sky, but the view would bury Hubble's Deep Field Survey." The challenges of off-Earth construction are left as an exercise for the reader.

Fraser Cain writes "Universe Today is reporting on a proposal under consideration by NASA from Dr. Robert Angel at the University of Arizona. He wants to build a 100-meter liquid mirror telescope into a crater on the Moon. It would only be able to look at a specific spot in the sky, but the view would bury Hubble's Deep Field Survey." The challenges of off-Earth construction are left as an exercise for the reader.