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NASA Cancels Hubble Mission, and Other Space Bits
An anonymous reader writes "NASA Watch is reporting that NASA has cancelled Servicing Mission 4 for the Hubble Space Telescope. The reason given is not for budgets, but for safety." ender81b writes "With all the excitement generated by the Mars Exploration Rovers now is a good time to look at future space exploration missions. One of the most exciting is the Kepler spacecraft which will search for terrestrial planets around nearby stars. Other interesting upcoming missions include the New Horizons mission to explore Pluto and the Kuiper belt, Deep Impact which will fire a small impactor into a comet to study the insides, Messenger which will fully photograph Mercury for the first time, and the ESA's Herschel infrared space telescope and Rosetta spacecraft which will land on a comet for the first time. Whew, good time to be invovled in space exploration!" StarWreck writes "Cnet.com is reporting that the Mars Rover uses Java. The same piece of software that lets people around the world play video games on their cell phones is now letting scientists drive the ultimate remote-controlled car across the surface of Mars."
If anyone's curious about the CPU used by the rovers, it's one of the POWER derived radiation hardened chips made by BAE Systems. While it's PPC based, it's more similar to a family of CPUs that split off even before the first of the Mac PPCs, the 601. Similar operating speed and power, however, as the first of those.
The newer PPC based space capable CPUs are RAD750s, which are directly related to the G3 PPC powering iMacs and iBooks.
While on the topic of space hardware, and going back to photograph mercury, what kind of camera equipment was used to take images of the moon and mars in the 1960s/1970s? I was told by an English teacher that each photo was snapshotted on film, then exposed in a small photoprocessing lab inside the probes, and scanned to send back to earth as there was no possibility of capturing fast moving images on CCD that far back. I think that sounds a bit of wishful thinking urban legend. Anyone know for sure?
thanks
I think I might be able add a little perspective here, and yes "OMG .." is a good start. I have been working for the past 5+ years on a science instrument for SM4. We've been busting ours butts, and our instrument is complete and ready to go. Today we learned that our mission is cancelled immediately, thanks for playing, do not collect$200, and don't let the door hit you on the way out.
The 'safety' issue is that the shuttle must fly a different orbit to service the Hubble than for a trip to the ISS (International Space Station). Once in orbit, a tile-damaged Hubble bound shuttle could not change its orbit to reach the safety of the ISS. NASA COULD however have another shuttle on the pad to catch up to the damaged orbiter and unload the astronauts. The problem is cost, whether to have the extra shuttle ready, or to employ a in-orbit tile fixing procedure.
GW is forcing NASA to re-direct $11Billion dollars from existing science projects to add to his contribution of $1Billion, so that we can send our ass(et)s to the Moon.IMHO, the cancelling of SM4 is purely about saving money. IMHO, this is GWs 'pie in the sky', get there before those evil Chinise and do it now, or I'm gonna cry, 'vision'.
The Hubble has been the best observatory ever constructed, and while ground-based optical telescopes have caught up the Hubble is some respects, no ground-based telescope can measure UV light, or compete with the Hubble on image stability (among many other things).
What's to become of the Hubble ? We cannot just let it fall back to Earth, very large pieces will survive the re-entry. Ideas have been tossed around with the options being to spend tons-o-cash to de-orbit it with a special rocket pack (guiding it into ocean), or bring it down with a shuttle.I doubt that the rocket pack can be constructed before Hubble re-enters in 2006. So, we may have to send a shuttle up to bring it down anyway.
FYI, SM4 would have extended the Hubble's livetime considerably with new Gyros and pushing Hubble back up to the shuttle yes maximum elevation. This would allow for overlap with JWST. Without this facility (HST) an entire arm of the astronomy community will be cut off.
Can you imagine if GW told the military, sorry about cancelling those jet-fighter things, don't worry we're gonna build this large wooden badger that's gonna show those silly French guys real good.
And it mostly hurts the Goddard Space Flight Center and the Space Telescope Science Institute, both of which are located in solidly Democratic Maryland.