The search for life on other planets relies, for lack of a better alternative, on what we know on Earth. However, this ...

The president in February directed the Department of Defense to begin reviewing government files related to extraterrestrial ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

Reverse-engineering the billion-year-old enzyme nitrogenase clued researchers into how life originally formed on Earth — and ...

Scientists say caves on Mars and icy moons may host microbial life and serve as future habitats for astronauts to be sent to ...

Alien experts claim powerful extraterrestrial life exists in the universe, which is beyond the control of any government — ...

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

Scientists in a recent breakthrough have introduced a new strategy to detect extraterrestrial life, marking a novel shift ...

Add Yahoo as a preferred source to see more of our stories on Google. US President Donald Trump speaks at a Black History Month reception in the East Room of the White House. Andrew Leyden/ZUMA Press ...

President Trump on Thursday directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of public fascination — and spawned more ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Probably not, but just possibly yes. One of ...