From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

NASA's Curiosity rover uncovered critical new samples, including a series of compounds planetary scientists consider building ...

The Mars Moons eXploration spacecraft will fire its thrusters to maneuver into orbit around Mars (depicted in this digital ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

Earth is dotted with many humongous, human-made structures. To an alien eye, they may be tell-tale signs of intelligent ...

NASA's Curiosity rover took this selfie at a site on Mars where it drilled a sample to search for organic molecules in ...

NASA’s Curiosity rover has identified seven new organic compounds on the planet Mars, according to new research published in ...

Several of the newly identified molecules are considered foundational to life’s chemistry.

Free-return trajectory – a path that loops around the Moon and returns to Earth without propulsion Permanently shadowed regions – areas near the lunar poles that never receive sunlight and may contain ...

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