Escape from Mars: How water fled the red planet

Mars once had oceans but is now bone-dry, leaving many to wonder how the water was lost. University of Arizona researchers have discovered a surprisingly large amount of water in the upper atmosphere of Mars, where it is ...

New estimates of Mercury's thin, dense crust

Mercury is small, fast and close to the sun, making the rocky world challenging to visit. Only one probe has ever orbited the planet and collected enough data to tell scientists about the chemistry and landscape of Mercury's ...

Earth and Venus grew up as rambunctious planets

What doesn't stick comes around: Using machine learning and simulations of giant impacts, researchers at the Lunar and Planetary Laboratory found that the planets residing in the inner solar systems were likely born from ...

In the eye of the beholder

Astrobiologists are developing 'intelligent' instruments that could help future robotic explorers make their own decisions about where and how to collect data. Although focused on Mars exploration for the time being, the ...

Curiosity rover nearing first anniversary on Mars

(Phys.org) —NASA's Curiosity rover will mark one year on Mars next week and has already achieved its main science goal of revealing ancient Mars could have supported life. The mobile laboratory also is guiding designs for ...

Meteorites reveal warm water existed on Mars

New research by the University of Leicester and The Open University into evidence of water on Mars, sufficiently warm enough to support life, has been published this week in the journal Earth and Planetary Science Letters.

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