Mars, NASA and ESCAPADE
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Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, what happened to the Red Planet, and could it happen to Earth?
A NASA mission will send twin spacecraft to Mars to learn what happened to the Red Planet's ancient, thick atmosphere.
ESCAPADE’s path through space, relative to the Earth, has the peculiar shape of a kidney bean. In the world of astrodynamics, this is called a staging or libration orbit. It’s a way to keep the spacecraft on a stable trajectory to wait for the opportunity to go to Mars late next year.
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NASA's new Mars mission: These twin satellites could reveal how the Red Planet lost its atmosphere
Mars is about to receive a double dose of attention. This weekend, a pair of identical NASA satellites will launch together to help reveal how the Red Planet lost its thick atmosphere and liquid water — one of its oldest mysteries, and a key to understanding how it transformed from a once-habitable world into the frozen desert it is today.