Scientists identified more than 10,500 kinds of minerals, nearly double the previous tally, in twin studies that have implications in the search for extraterrestrial life.
Cosmic rays likely annihilate amino acids within two meters of the red planet’s surface, according to a first-of-its-kind experiment.
Life on a rogue Super-Earth would be difficult, but organisms have been shown to thrive even in very extreme conditions on regular Earth.
It's unlikely to be ET, but China's next-generation radio telescope is still a major asset in the search for extraterrestrial intelligence.
Scientists estimate there are billions of free-floating planets in our galaxy, and we should investigate them for signs of "cosmic hitchhikers," one scientist has proposed.
“These machines are no longer made by a company that no longer exists and are running on an operating system that no longer exists,” said the director of the SETI@home project.
Back-of-the-napkin math assuming aliens are like humans suggests there are only a few evil alien societies in our galaxy, which is good news for everyone.
After decades of searching, scientists found all the components for the source code of life in extraterrestrial rocks.
The meteor that crashed into the Pacific was confirmed to be interstellar by secret government data. Harvard astronomer Avi Loeb wants to recover it.
Observations of Greenland suggest that Jupiter’s ice moon may host shallow liquid water.