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The next Mars rover, called Curiosity, is set to launch next November. It’s ten times more advanced than the rovers currently on Mars. It has ten times the number of experiments it can conduct and weighs five times as much. One of the most interesting upgrades: a spacecraft will deliver the rover to a precise location within a 12-mile radius, use reverse thrusters to gently lower the delivery vessel. The rover will also start preparing itself for operation during descent and start moving immediately after landing.
The shield, which is made from "phenolic impregnated carbon ablator," keeps the capsule at room temperature even though the outside temp is somewhere around 4,000 degrees. The shield can be re-used for each mission and is even capable of withstanding the harsher re-entry conditions of Mars. It's similar to the carbon brake pads used on an F1.
NASA recently developed a rock-zapping laser that will be used on the Mars Science Laboratory, the new rover that will launch next November. With a blast that’s good for up to 22 feet (NASA officially reported a 32-foot distance, but has corrected that fact for FoxNews.com), the laser explodes pinhead-sized rocks into fragments that can then be studied for their chemical compounds. When the rocks are blasted, they produce a flash of light that can also be studied for its chemical make-up.
One of the issues facing astronauts who spend too much time in space -- apart from missing family and aging at a slightly different rate from the rest of us -- is that they suffer bone loss. MIT has invented a new spacesuit, called the Gravity Loading Countermeasure Skinsuit (GLCS), that simulates the effects of gravity on the body and helps reduce bone loss.
Originally posted by anon72
Skin-tight spacesuit reduces bone loss
[atsimg]http://files.abovetopsecret.com/images/member/7c8a62929b0d.jpg[/atsimg]
Originally posted by tiger5
It is all good.
Can anyone explain to me how come re-entry would be harsher for mars than for earth? Did I read it right? Mars has less atmosphere than the earth hence reentry should be less harsh??edit on 5-1-2011 by tiger5 because: (no reason given)
Originally posted by tiger5
It is all good.
Can anyone explain to me how come re-entry would be harsher for mars than for earth? Did I read it right? Mars has less atmosphere than the earth hence reentry should be less harsh??edit on 5-1-2011 by tiger5 because: (no reason given)
....For lunar return entry of 11 km/s, the shock layer contains a significant amount of ionized nitrogen and oxygen. The five species model is no longer accurate and a twelve species model must be used instead. High speed Mars entry which involves a carbon dioxide, nitrogen and argon atmosphere is even more complex requiring a 19 species model.