Identical essays get different feedback in Stanford study and that can have consequences on what students learn.

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

Scientists identify 45 potentially habitable exoplanets, using exact data and quotes to guide future telescopes in the search ...

The Curiosity rover conducted a first-of-its kind experiment on Mars, detecting organic molecules that have never been ...

The organic molecules discovered by NASA’s Curiosity rover could have been formed by life, but they could have also come from ...

New images from the Mars Express spacecraft show ancient volcanic ash spreading across the Red Planet. Europe's Mars orbiter ...

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of ...

People who want to reach out to E.T. have long recognized the communication potential of such " megastructures ." In the ...

Scientists discover desert microbes that produce gases which could help detect life in alien atmospheres beyond oxygen-based ...

Mars may look barren today, but beneath its dusty surface, scientists are uncovering clues that tell a very different story.

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 ...

Steven Spielberg’s 2005 sci-fi alien film is arriving on Hulu very soon. Here are all the details on the film and its release ...