May 21, 2010
Group items tagged
SPACE.com -- Venus Probe's Problems May Cause Japan to Scale Back - 0 views
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We have to be more conservative to plan our next planetary mission, so it will never fail in any aspect."
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the probe's initial failure will have a big impact on how JAXA plans future planetary missions
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hew to more conservative ideas in the near future
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what a shame! ambition and innovation have not been fairly rewarded ...
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I didn't have time yet. But formulating the failure with a MTBF or a FIT, you can easily imagine a more robust solution. Instead of one single burn, you would make several smaller burns - It will take more time and require more fuel though. Another "robust" approach is to consider weak stability boundary capture. Again it takes time, but chances of failure are lessen.
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would be a pity indeed!
Lonely Rogue Worlds Surprisingly Outnumber Alien Planets with Suns | Alien Planets & So... - 1 views
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Astronomers have discovered a whole new class of alien planet: a vast population of Jupiter-mass worlds that float through space without any discernible host star, a new study finds.
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Sumi and his team looked at two years' worth of data from a telescope in New Zealand, which was monitoring 50 million Milky Way stars for microlensing events. They identified 474 such events, including 10 that lasted less than two days. The short duration of these 10 events indicated that the foreground object in each case was not a star but a planet roughly the mass of Jupiter. And the signals from their parent stars were nowhere to be found.
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here's something we didn't consider yesterday in the meeting on extra-solar planets!
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this is because you did not read the nature paper I have posted (see post a few lines below ...)
SPACE.com -- Presidential Panel Narrows Options for NASA's Future - 0 views
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a lot in this reads like our Aurora plan about seven years ago ...
SPACE.com -- Japanese Astronaut Craves Sushi - 0 views
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did not know about this heroic! experiment to wear the same underwear for two months!
SPACE.com -- Delays and Cost Overruns Epidemic at NASA, Former Official Charges - 0 views
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we could say to them " welcome to the club" ...
SPACE.com -- It's Official: Water Found on the Moon - 2 views
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They knew before crashing....
A Physics Paradox: Holes That Block Light -- Fox 2009 (1113): 3 -- ScienceNOW - 0 views
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Make holes in a film of gold so thin that it's already semitransparent, and less light gets through.
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A good example of "Can we use it for space.com"... For shielding of course !
Water-Powered Spaceship Could Make Spaceflight Cheaper | Space Travel and Exploration |... - 1 views
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what to think about that? spoiling important ressources, smart idea?, and is it really cheap?
Private Space Habitat to Launch in 2020 Under Commercial Spaceflight Deal - 0 views
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Two aerospace companies are teaming up to launch giant space habitats to orbit, with the first such liftoff targeted for 2020. Bigelow Aerospace will loft its giant, expandable B330 modules - each of which will provide one-third as much usable volume as the entire International Space Station (ISS) - aboard United Launch Alliance (ULA) Atlas V rockets, representatives from both companies announced today (April 11).
Hubble to Watch Historic Venus Transit, Using Moon as Mirror - 2 views
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"Scientists are planning to use NASA's Hubble Space Telescope to observe next month's historic transit of Venus across the sun's face. But there's a twist. Researchers can't point Hubble anywhere near the sun, because our star's bright light could damage the telescope's super-sensitive instruments. So Hubble will watch the June 5-6 Venus transit by using the moon as a mirror."
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aha. i suggested something like this a few years ago
Perseids Meteor Shower Gazing - 0 views
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Tonight also YoungESA is going to gather at Oudenhoorn beach at the lake in Warmond just North of Leiden from 22h onwards
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