But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

NASA is quietly turning a long‑range dream into hardware, backing a suite of technologies for a so‑called “Super Hubble” that would put the search for alien life at the center of its next flagship ...

Astronomers say that there are possible signs of life on Comet 67P, based on data from the European Space Agency's Philae Lander. The comet has features that indicate it may be home to alien life, ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit. A new study shows that Earth formed under ...

Well, at least that means no alien invasions anytime soon.

Nitrogen, upon which all life on Earth depends, may hold the key for explaining how early life on the planet evolved and how it could evolve on other planets. "All living organisms need nitrogen to ...

Thanks to theorists like Ruth Murray-Clay, astronomers are decoding how distant planets form, evolve, and maybe even host life. When Ruth Murray-Clay entered graduate school, only a handful of ...

In July 2014 a panel of scientists from NASA announced that they're convinced they will soon find life outside planet Earth. One NASA scientist said, "We believe we're very, very close in terms of ...

For life to develop on a planet, certain chemical elements are needed in sufficient quantities. Phosphorus and nitrogen are essential. Phosphorus is vital for the formation of DNA and RNA, which store ...