Looking for life on Mars? Look for pasta-shaped rocks

Alien life is almost certainly out there somewhere, but because it’s most likely microscopic, it probably won’t be easy to spot. Instead we might need to keep an eye out for other biomarkers, which could be detected in the atmosphere, soil or… Continue reading Looking for life on Mars? Look for pasta-shaped rocks

Curiosity strikes clay in new samples, further proving Mars' watery past

Curiosity took this selfie on May 12. The two drill holes in the clay-bearing region can ...

NASA’s Curiosity rover has begun investigating one of the most interesting regions so far on its seven-year journey. Scientists call the area the “clay-bearing unit,” and sure enough, that name has turned out to be very apt. After drilling two new samples last month, the rover has finally confirmed high amounts of clay minerals, providing further proof that ancient Mars was once much wetter.

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Continue reading Curiosity strikes clay in new samples, further proving Mars' watery past

The Short and Tragic Story of Life on the Moon

The Moon is a desolate rock, completely incapable of harboring life as we know it. Despite being our closest celestial neighbor, conditions on the surface couldn’t be more different from the warm and wet world we call home. Variations in surface temperature are so extreme, from a blistering 106 C (223 F) during the lunar day to a frigid -183 C (-297 F) at night, that even robotic probes struggle to survive. The Moon’s atmosphere, if one is willing to call the wispy collection of oddball gasses including argon, helium, and neon at nearly negligible concentrations an atmosphere, does nothing …read more

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What Baby Stars and Meteorites Can Tell Us About Our Solar System’s Past

Rachel Smith studies the birth of stars to better understand the origins of life on Earth, and perhaps elsewhere in the universe. Continue reading What Baby Stars and Meteorites Can Tell Us About Our Solar System’s Past