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Domain: astroengine.com
Stories and comments across the archive that link to astroengine.com.
Stories · 194
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Neil Armstrong To NASA: You're Embarrassing
astroengine writes "Neil Armstrong, Apollo legend and outspoken critic of NASA's current direction for human spaceflight, was joined by three other space experts to address Congress on Thursday. It wasn't pretty. Amongst the other criticisms was Armstrong's tough statement: 'For a country that has invested so much for so long to achieve a leadership position in space exploration and exploitation, this condition is viewed by many as lamentably embarrassing and unacceptable.' He might have a point, but Apollo 17's Eugene Cernan, the last man to walk on the moon, suggested the shuttles should be brought out of retirement to fill the U.S. manned spaceflight gap — a suggestion that probably rolled some eyeballs." -
The Search For Apollo 10's "Snoopy"
astroengine writes "A UK-led team of astronomers are going to use their comet and asteroid-hunting skills to track down a piece of Apollo history. In 1969, Apollo 10 did everything the first moon landing (Apollo 11) did, except land on the lunar surface. During the Apollo 10 mission, the lunar module, nicknamed 'Snoopy,' was jettisoned and sent into a solar orbit — it is still believed to be out there, 42 years later. 'We're expecting a search arc up to 135 million kilometers in size which is a huge amount of space to look at,' British amateur astronomer Nick Howes told Discovery News. 'We're aware of the scale and magnitude of this challenge but to have the twin Faulkes scopes assist the hunt, along with schools, plus the fact that we'll doubtless turn up many new finds such as comets and asteroids makes this a great science project too.'" -
Are Small Rocky Worlds Naked Gas Giants?
astroengine writes "The 'core accretion' model for planetary creation has been challenged (or, at least, modified) by a new theory from University of Leicester astrophysicists Seung-Hoon Cha and Sergei Nayakshin (abstract). Rather than small rocky worlds being built 'bottom-up' (i.e. the size of a planet depends on the amount of material available), perhaps they were once the cores of massive gas giant planets that had their thick atmospheres stripped after drifting too close to their parent stars? This 'top-down' mechanism may also help explain how smaller worlds were formed far from their stars only to drift inward toward the habitable zone." -
Soyuz Capsule Return Marred By Mystery Communications Blackout
astroengine writes "An unexplained communications loss left flight controllers unable to speak with three space station crew returning to Earth over Kazakhstan during the last 15 minutes of their descent Thursday night. The first indication that the capsule survived its fiery plunge through the atmosphere was a series of beeps signaling components of the Soyuz had been jettisoned as planned. Later, ground controllers picked up signals that the Soyuz's parachutes had deployed, but it wasn't until a Russian recovery aircraft established two-way radio communications with the crew that flight controllers knew all was well." -
First Exoplanet Discovered Orbiting Two Stars
astroengine writes "For the first time, astronomers have discovered an exoplanet orbiting binary stars. Kepler-16b, a Saturn-sized world approximately 200 light-years away, orbits Kepler-16, two stars locked in a mutual dance. Although other exoplanets are known to exist in binary systems, they have only been known to be orbiting one star of the binary pair; Kepler-16b orbits both. No doubt Kepler-16b will excite memories of Tatooine, Luke Skywalker's homeworld, but the double sunset is where the similarities end. Kepler-16b would be anything but a desert world; it is the approximate size of Saturn, it is extremely cold, and its average density is that of water." -
Star Rips Exoplanet To Shreds With X-Rays
astroengine writes "Some relationships are doomed from the beginning, and the same can be said of some planetary systems. In the case of the star CoRoT-2a, some 880 light-years from Earth, it is quite literally ripping its orbiting exoplanet to shreds. Five million tons of material per second is being stripped from the closely orbiting world CoRoT-2b by powerful stellar X-rays. But it's OK, the destructive nature of this planetary system is mutual; CoRoT-2b's orbit is likely maintaining the high spin rate of the star, boosting magnetic activity, thus boosting the X-ray output." -
Kepler Discovers 'Phantom' Exoplanet
astroengine writes "The Kepler space telescope has spotted an extra-solar planet with a very odd orbit. Sometimes Kepler-19b slows down by five minutes during its 9-day orbit. Other times it speeds up by five minutes. Johannes Kelper's laws of orbital dynamics never said a celestial body can arbitrarily speed up and slow down; another planetary body must therefore be gravitationally acting on Kepler-19b. Enter Kepler-19c, a world that hasn't been observed, but its gravitational effects have. This is an unprecedented discovery, one that could potentially be used in multi-planetary star systems to discover more 'phantom' worlds that would have otherwise gone unnoticed." -
Could New Rover's Wheels Deliver Germs To Mars?
astroengine writes "Although the idea of "infecting" the Red Planet with our germs is nothing new, one microbiologist believes the next Mars rover may have a higher chance of becoming a microbe lifeboat. Andrew C. Schuerger, of the University of Florida and the Space Life Sciences Lab at NASA's Kennedy Space Center in Florida, believes the problem could lie in the way NASA's Mars Science Laboratory (MSL) will land on the Red Planet — wheels first. Previous Mars rovers have sat atop a lander platform for at least two Martian days (sols) before venturing into the regolith; any surviving bacteria attached to their wheels were therefore killed by the harsh UV light that bathes Mars. As the MSL's wheels will immediately make contact with the regolith straight after entry, there might be an increased chance of contaminating Mars with terrestrial germs. But still, as Schuerger admits, the risks are tiny." -
18-Year-Old Student Discovers Comet Break-Up
astroengine writes "It's an event that any professional astronomer would consider to be a once-in-a-lifetime discovery. But for one 18-year-old British student, witnessing the fragmentation of a comet she was studying became the highlight of a summer work experience program using the Faulkes Telescope Project. However, that was just the icing on the cake; Hannah Blyth of St. Johns College, Cardiff, also assisted in the discovery of over 20 previously unknown asteroids, two of which she discovered herself. It is extremely rare to spot a fragmenting comet, but for an amateur (let alone an 18-year-old student on work experience), this is an incredible achievement." -
Bezos Discloses Failure of Blue Origin Rocket Test Flight
astroengine writes "An experimental suborbital space vehicle developed by Blue Origin, a space startup founded by Amazon.com chief Jeff Bezos, was lost during a test flight last week. During the secretive flight, the vehicle reached an altitude of 45,000 feet and attained a velocity of Mach 1.2. Soon after, things went horribly wrong. 'A flight instability drove an angle of attack that triggered our range safety system to terminate thrust on the vehicle,' said an upbeat Bezos in Friday's statement." -
Juno Looks Back, Photographs Earth-Moon System
astroengine writes "Looking back as it zooms through interplanetary space, less than a month into its 445-million mile, five-year journey to the gas giant Jupiter, NASA's spacecraft Juno captured a portrait of the Earth and moon. Juno was 6 million miles away at the time. 'This is a remarkable sight people get to see all too rarely,' said Scott Bolton, Juno principal investigator from the Southwest Research Institute in San Antonio. 'This view of our planet shows how Earth looks from the outside, illustrating a special perspective of our role and place in the universe. We see a humbling yet beautiful view of ourselves.'" -
Russian Resupply Crash Could Mean Leaving ISS Empty
astroengine writes "In the wake of the Russian Progress vehicle crash shortly after launch on Aug. 24, a chain of events has been set into motion that could result in the decision not to fly astronauts into orbit. If this happens, the ISS will be temporarily mothballed before the end of the year to avoid landing astronauts during the harsh Kazakh winter." -
What If Aliens Came To Save the Galaxy From Mankind?
astroengine writes with an amusing piece in Discovery. From the article: "In a study carried out by NASA and Pennsylvania State University scientists, several intelligent extraterrestrial encounter scenarios are examined. One of the scenarios is a sci-fi favorite: what if we encounter an alien race hellbent on destroying us? However, there's a twist. This isn't mindless thuggery on behalf of the aliens, and they're not killing us to get at our natural resources; they have a cause. They want to exterminate us for the greater good of the Milky Way." -
Astronaut Photographs Perseid Meteor — From Space
astroengine writes "As the Perseid meteor shower begins to subside, there is one observer who was perfectly positioned to take a photograph where the skies are guaranteed to be clear from cloud. NASA astronaut Ron Garan — who is currently living aboard the International Space Station (ISS) as part of Expedition 27 — captured this stunning photograph of a Perseid out of the ISS window." -
Sun Unleashes Most Powerful Flare Since 2006
astroengine writes "Early Tuesday morning, the Sun unleashed a powerful X-class flare. The X7 flare is the most energetic explosion to come from the Sun since December 2006. Although the flare was directed away from the Earth, a minor proton storm was detected and some radio communications have been disrupted due to higher-than-normal rates of ionization in the Earth's ionosphere. NASA's Solar Dynamics Observatory captured the whole event, imaging the flaring site and multi-million degree post-flare plasma." -
Space Station To Be Deorbited After 2020
astroengine writes "Russia and its partners plan to plunge the International Space Station (ISS) into the ocean at the end of its life cycle after 2020 so as not to leave space junk, the space agency said on Wednesday. 'After it completes its existence, we will be forced to sink the ISS. It cannot be left in orbit, it's too complex, too heavy an object, it can leave behind lots of rubbish,' said deputy head of Roskosmos space agency Vitaly Davydov." -
Heat 'Most Likely Cause' of Pioneer Anomaly
astroengine writes "Everything from clouds of dark matter, weird gravitational effects, alien tampering and exotic new physics have all been blamed for the 'Pioneer Anomaly' — the tiny, inexplicable sun-ward acceleration acting on the veteran Pioneer deep space probes. However, evidence is mounting for a more mundane explanation. Yes, it's the emission of heat from the spacecrafts' onboard radioisotope thermoelectric generators (RTGs), slowly nudging the Pioneers off course, that looks like the most likely culprit. It's unlikely that this new finding will completely silence advocates of more exotic explanations, however." -
Atlantis' Final Reentry Over Cancun, Mexico
astroengine writes "Once again, videographer Noe Castillo has captured space shuttle history through his camera lens. On June 1, 2011, he witnessed the final reentry of space shuttle Endeavour. Now he's released a video via his YouTube account showing the final reentry of Atlantis... and the final reentry of any space shuttle." Many other cameras were trained on Atlantis yesterday, including one from the ISS, which captured the re-entry from the other side. Thierry Legault caught Atlantis transiting the sun for the last time, and NASA has pictures and video of the landing. -
Do 'Ultracool' Brown Dwarfs Surround Us?
astroengine writes "The recent discovery of two very cool 'T-class' brown dwarfs in our cosmic neighborhood has prompted speculation that there may be many more ultracool 'failed stars' nearby (abstract). Not only are these objects themselves very interesting to study, should there be many such brown dwarfs spanning interstellar space. Perhaps they could be used as 'stepping stones' to the stars." -
NASA Probe Orbiting Asteroid Vesta
astroengine writes "Mission managers of NASA's Dawn asteroid probe had a long Saturday, waiting for news from the asteroid belt. Eventually they got the news they were hoping for: Dawn had entered Vesta orbit. This is the first time in history that an object in the asteroid belt has been orbited by an artificial satellite. It's taken four years for the ion thruster-propelled spacecraft to reach the asteroid and there was some uncertainty as to whether the probe had been captured by the asteroid's gravity at all. But after a long period of waiting, mission managers received the signal after Dawn was able to orientate its antenna toward Earth." -
James Webb Space Telescope Closer To the Axe
astroengine writes "This could be considered 'strike two' for the deeply troubled James Webb Space Telescope (JWST). Last week, the House Commerce, Justice, and Science Appropriations Subcommittee made the recommendation that the advanced infrared space telescope be cancelled. On Wednesday, the full House Science, Space and Technology Committee has approved the subcommittee's plan. The project may not be dead yet — the 2012 budget still has to be voted on my the House and Senate — but it sure is looking grim for 'Hubble's replacement.'" -
Red Wine Counters Some Negative Health Effects of Microgravity
astroengine writes "Great news for astronaut red wine aficionados: the alcoholic beverage can counteract some of the most troublesome physiological effects of microgravity. Unfortunately (or fortunately, depending on whether or not you have to pilot a spaceship), you have to drink a lot of wine to reap any benefit. These findings are fresh from the labs of French researchers (abstract) who found that by dosing unfortunate rats — hung by their tails to simulate microgravity — with resveratrol (a compound found in red wine), they could help stave off bone density loss and muscle atrophy. Does this mean resveratrol is an astronaut's best friend? Possibly, but judging by the quantities that are needed, it would most likely come in supplement form, rather than 750 ml bottles." -
First Photos of Asteroid 2011 MD
astroengine writes "At around 1 p.m. EDT on Monday, asteroid 2011 MD narrowly missed Earth's atmosphere, passing well within the orbits of our GPS satellites. Scientists worked hard to track the space rock, and astronomers using the 2-meter Faulkes Telescope in Siding Spring, Australia, managed to image the asteroid. Also, Planetary Science Institute research scientist Pasquale Tricarico put together some pretty cool asteroid-eye-view animations of the event." -
Dying Star Betelgeuse Spews Fiery Nebula
astroengine writes "Betelgeuse is dying a nasty death. The star is in the final, violent stages of its life, shedding vast amounts of stellar material into space as it quickly approaches a supernova demise. But now, with the help of the European Southern Observatory's Very Large Telescope, Betelgeuse's extended nebula has come to light. Comprised of silica and alumina dust, ESO astronomers have been able to image the nebula in infrared wavelengths for the first time. This is the most detailed view we've ever had of the imminent death of a titanic red supergiant star." -
Homemade 'Mars In a Bottle' Tortures Bacteria
astroengine writes "The only time we've ever directly looked for life on Mars was during the 1970s, when NASA's Viking landers attempted to make direct measurements of Martian microbes metabolizing. Even today, the results of these groundbreaking experiments are hotly debated. Although the Viking experiments were often considered premature, a team of scientists hope to refine the next life-searching experiment to be sent to the Red Planet by building a Mars habitat on Earth. Imagine a Mars environment 'goldfish bowl' complete with UV radiation, dust, chilly temperatures, and an extremely low atmospheric pressure. So what have they done with this micro-Mars environment? They've been torturing various terrestrial microbes to see how they enjoy stints on the Martian surface. Their results have shown that even Earth microorganisms have a trick or two up their sleeves to survive in this alien environment." -
Twitter Helps Astronomers Zero-In On M51 Supernova
astroengine writes "A tweet about last week's M51 (the 'Whirlpool Galaxy') 14-magnitude bright stellar explosion was picked up by University of California, Berkeley, astronomers... who just so happened to be enjoying some observing time on one of Keck Observatory's monster telescopes. Although the weather wasn't perfect, the Berkeley team were able to quickly observe a spectrum from the M51 brightening to quickly confirm that it was a Type II supernova — the core collapse of a massive star, some 8 times the mass of the sun. 'This is the first time that we've been alerted via a tweet,' Alex Filippenko, lead astronomer of the UC Berkeley team, told Discovery News." -
Historic Pairing: Shuttle Docked To the ISS
astroengine writes "It's been imaged in artists' renderings, but never before in actual photos: the sight of a space shuttle berthed at the International Space Station. This view of shuttle Endeavour, taken by Italian astronaut Paulo Nespoli from aboard a Russian Soyuz capsule on May 23, is the culmination of 36 space shuttle missions to build the outpost over the past 12 years. NASA wanted the shot before it retires the shuttle fleet after one final mission in July." -
Project Icarus: the Gas Mines of Uranus
astroengine writes "When considering the fuel source for a fusion-powered interstellar probe, wouldn't it be a good idea to set up a colony on the moon and start pillaging the lunar surface for its helium-3 riches? Not so fast, says Adam Crowl of Project Icarus, there may be a far more viable source. What about the gas giants? Although Jupiter's gravity could pose a problem and Saturn's rings might get in the way (and forget Neptune, that place is one hell of a commute), perhaps the helium-3 in the Uranian atmosphere could be mined using atmospheric balloons?" -
Does Quantum Theory Explain Consciousness?
astroengine writes "Quantum theory is often seen as the root cause of unrelated, mysterious phenomena. Take consciousness for example. British physicist Roger Penrose recently argued 'that we will need to invoke 'new physics and exotic biological structures': rewriting quantum theory to make sense of consciousness.' But why do this, especially as there is no apparent causal link between quantum mechanics and the conscious mind? There appears to be a very basic logical fallacy here that even the most prominent physicists seem to be making." -
Worm Descendants From Columbia Disaster Relaunched
astroengine writes "In 2003, Space Shuttle Columbia burned up on reentry, killing all seven astronauts on board. However, from the wreckage, a sample of C. elegans worms survived. On Monday, descendants from the worms that survived the disaster were launched on board Endeavour for experiments on the space station. 'C. elegans is a common, well-studied organism used in biomedical research as a model for human development, genetics, aging and disease,' says NASA. 'The organism shares many essential biological characteristics found in human biology.'" -
NASA Banned From Working With China
astroengine writes "In the wake of the Chinese cyber-threat and claims of espionage, a clause included in the US spending bill approved by Congress to avert a government shutdown a few weeks ago has prohibited NASA from coordinating any joint scientific activity with China. The clause also extends to the White House Office of Science and Technology Policy." -
Project Icarus: an Interstellar Mission Timeline
astroengine writes "What would the infrastructure supporting an interstellar mission look like? Considerations such as fuel sources, mining methods, interstellar spaceship construction activities and maintenance are being analyzed, all of which would be carried out before even reaching the ultimate interstellar goal. Project Icarus is currently unravelling the complexities of this operation and recently created a nifty animation of how one of the many fuel tanks may be recycled as communication relay pods en route to nearby stars." -
Kepler May Uncover Numerous Ring Worlds
astroengine writes "According to a new publication, NASA's Kepler exoplanet-hunting space telescope may soon start discovering Saturn-like ringed alien worlds. So far, none have been positively identified, as Kepler has only detected exoplanets orbiting close to their parent stars; if these exoplanets have rings, they are most likely to have rings facing edge-on to their orbits, making them nearly impossible to detect. As more distant-orbiting exoplanets are detected, there's more likelihood ringed worlds will be tilted, allowing Kepler to see them." -
Did Some Black Holes Survive the Big Bang?
astroengine writes "Could anything survive from one universe to the next, through a Big Crunch and resulting Big Bang? According to two researchers, a special class of pre-Big Bang black hole may have the ability to traverse the Big Bang singularity. The upshot is that there may be black holes that existed before the Big Bang knocking around in our modern universe. What's more, we might be able to detect them through the theorized gamma-ray burst produced when these pre-Big Bang black holes evaporate out of existence. But how would we distinguish between these black holes and the primordial black holes thought to be produced after the Big Bang? Well, that's just too confusing right now." -
Comet Hale-Bopp 'Frozen To Death'
astroengine writes "In 1997, comet Hale-Bopp became the most spectacular space event of the past few decades. But where's the huge lump of ice now? Astronomers have decided to check in on the interplanetary interloper to see how its journey is going after sweeping through the inner solar system 15 years ago. Now beyond the orbit of Neptune, Hale-Bopp has undergone a dramatic change. As it travels further from the sun, inevitably its surface receives less heat, and now the comet appears to have reached a watershed: it has ceased all cometary activity, in stark contrast to only 3 years ago. The next time it will erupt to life will be in around 2,500 years when it completes its next solar flyby." -
The Space Station As a Simulated Mars Mission?
astroengine writes "NASA is looking at using the International Space Station as a testbed for a human mission to Mars, beginning with a planned week-long simulation to be staged next summer. Preliminary tests would involve working on systems that give astronauts more autonomy, perhaps culminating in a full mission analog, sealing a crew inside a separate module of the station with minimal interaction with the rest of the station and mission control. 'We want to use the space station as a way to get smarter about what a mission to Mars or a mission to an asteroid might look like,' space station flight controller Pete Hasbrook told Discovery News." -
What Happens If You Get Sucked Out of a Plane?
astroengine writes "We've all wondered about it. When flying at 30,000ft, you look around the cramped economy class cabin thinking 'I wonder if I'd survive being sucked out of this plane if a hole, say, just opened above my head?' That's probably around the time that you should fasten your seat belt. According to medical experts interviewed by Discovery News in the wake of the Southwest Airlines gaping hole incident, the rapid depressurization, low oxygen levels and freezing cold would render you unconscious very quickly. Assuming you don't get chopped in half as you exit through the hole and hit the tail, you'd be long dead before you hit the ground. Nice." -
Using Fusion To Propel an Interstellar Probe
astroengine writes "We've heard of nuclear pulse propulsion being the ideal way to travel through interstellar space, but what would such a system look like? In the 1970's, the British Interstellar Society's (BIS) Project Daedalus was conceived to fire pellets of fusion fuel out the rear of an interstellar space probe that were ignited using a powerful laser system. The 'pulsed inertial confinement fusion' wouldn't be 'vastly different from a conventional internal combustion engine, where small droplets of gasoline are injected into a combustion chamber and ignited,' says Richard Obousy, Project Leader and Co-Founder of Project Icarus. Now, building on the knowledge of Daedalus, the researchers of Project Icarus have prepared a nifty animation of a fusion pulse propulsion system in operation on the original Daedalus vehicle." -
Case Closed On Jerusalem UFO Video
astroengine writes "Skepticism was high after videos surfaced earlier this year depicting a UFO over Jerusalem. However, ufologists defended the sighting, dismissing claims that it was a hoax. But a few days ago, the Mutual UFO Network (MUFON), one of the oldest, largest, and most respected UFO investigation organizations in the world, announced their findings about the Jerusalem UFO. Yes, even MUFON has concluded it was a hoax." -
Mars Rover Down? Spirit Stays Silent
astroengine writes "One year after NASA's Mars Exploration Rover Spirit stopped communicating with Earth, mission managers have announced that they will give the stranded rover one more month to send a signal before they scale back the search. But things aren't looking good. In the words of JPL-based Mars rover driver Scott Maxwell, 'Spirit was so close to us, just a year ago. Snap your fingers, and she's a hundred million miles distant and we can't even prove she's alive.'" -
Was the Early Universe 2 Dimensional Spacetime?
astroengine writes "According to two theoretical physicists, our current four-dimensional Universe (3 dimensions of space, 1 dimension of time) is actually an evolution from a lower-dimensional state. The early Universe may have existed with just one spatial dimension (plus one time dimension) up until the Universe cooled below an energy state of 100 TeV. At this point, a transition occurred when the spatial dimension "folded" to create 2 dimensions. At 1 TeV, it folded again to create the Universe we know today: 3 dimensions of space, one of time. This may sound like a purely theoretical study, but there might be evidence of the evolution of universal dimensions in cosmic ray measurements and, potentially, in gravitational wave cut-off frequency." -
Brown Dwarf Hits Record Low
astroengine writes "The Keck II infrared telescope on Mauna Kea, Hawaii, has spotted what appears to be the coldest brown dwarf ever detected. Astronomers from the University of Hawaii have managed to constrain its temperature to just shy of 100 degrees Celsius. The object is part of a brown dwarf binary system and is estimated to be 6-15 times the mass of Jupiter. This is an exciting object as it could belong to a so-far theoretical 'Y' class of brown dwarf, a classification that makes objects like this cool example more planet-like than star-like." -
Aussie Brewery Creates Space Beer
astroengine writes "An Australian brewing company has created the world's first beer that can be consumed in space. 4-Pines Brewing Company teamed up with Saber Astronautics Australia, tirelessly testing different brews on zero-G flights last year. They have now finalized the winning formula, calling the beer 'Vostok' — after the spacecraft flown by Yuri Gagarin in 1961. The beverage is a strong-tasting stout with reduced carbonation to avoid the dreaded microgravity 'wet burp.'" -
Nautilus-X: the Space Station With Rockets
astroengine writes "So we have a space station, now what? We've heard some rather outlandish ideas, but this is one concept a research group in NASA is taking seriously. By retrofitting the ISS with rockets, Nautilus-X will act as an interplanetary space station of sorts, including room for 6 astronauts, an artificial gravity ring, inflatable habitats and docking for exploration spaceships. When can we take a luxury cruise to Mars? 2020 by the project's estimate. It all sounds very 2001, but the projected costs of retrofitting the space station seem a little on the low side." -
The Outfall of a Helium-3 Crisis
astroengine writes "The United States is currently recovering from a helium isotope crisis that last year sent low-temperature physicists scrambling, sky-rocketed the cost of hospital MRI's, and threw national security staff out on a search mission for alternate ways to detect dirty bombs. Now the panic is subsiding, what is being done to conserve, or replace, helium-3?" -
Milky Way Stuffed With an Estimated 50 Billion Alien Worlds
astroengine writes "Using data extrapolated from the early Kepler observations of 1,235 candidate exoplanets, mission scientists have placed an estimate on the number of alien worlds there are in our galaxy. There are thought to be 50 billion exoplanets, 500 million of which are probably orbiting within their stars' habitable zones." -
Sizing Up the Daedalus Interstellar Spacecraft
astroengine writes "How big would an interstellar spaceship need to be? New artwork of the British Interplanetary Society's 1970's Project Daedalus by the non-profit organization Tau Zero Foundation gives the impression that the fuel economy for a nuclear pulse propelled vehicle might be a bit steep." -
Extra-Galactic Planet Discovered In Milky Way
astroengine writes "Between six to nine billion years ago, the Milky Way collided with another galaxy. As you'd expect, this caused quite a mess; stars, dust and gas being ripped from the intergalactic interloper. In fact, to this day, the dust hasn't quite settled and astronomers have spotted an odd-looking exoplanet orbiting a metal-poor star 2,000 light-years from Earth. Through a careful process of elimination, the extrasolar planet (known as HIP 13044b) actually works out to be an extragalactic planet, a surviving relic of the massive collision eons ago." -
Most Detailed View of Dark Matter Mapped By Hubble
astroengine writes "Building on previous studies by the Hubble Space Telescope, new analysis of gravitational lensing data has revealed the most detailed map of the distribution of dark matter yet. The distribution appears as a beautiful ghost-like or ethereal haze and could have serious ramifications on our understanding as to how galaxy clusters form and evolve." -
Hayabusa Captured Asteroid Dust Confirmed
astroengine writes "It's been a seven-year roller-coaster ride for the asteroid sample return mission, but JAXA — the Japanese space agency — has confirmed that 1,500 particles of dust from the surface of asteroid Itokawa have been found inside the sample return capsule. The capsule parachuted to Earth shortly before the Hayabusa spacecraft reentered over the Australian Outback in June. Since then, scientists have been painstakingly analyzing the capsule's contents to make sure the dust they found wasn't terrestrial contamination. Now they are sure, making this the first time a sample has been collected from the surface of an asteroid (and only the second time a sample has been returned from a celestial object, the first being the Moon missions)."
