Discovering extraterrestrial life has tantalized the public imagination as far back as Epicurean philosophers in Ancient Greece. Yet despite centuries of speculation, the search for alien ...

The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious ...

Discovering extraterrestrial life has tantalized the public imagination as far back as Epicurean philosophers in Ancient Greece. Yet despite centuries of speculation, the search for alien ...

Despite no clear-cut evidence, mankind has wondered for eons whether we’re alone in the universe. One astronomer, however, is almost sure that extraterrestrial life exists. In a new study, Co… ...

A new study that claims to present evidence of alien life is being met with a healthy dose of skepticism in the scientific community. On July 31, a team of British researchers sent a balloon into ...

Avi Loeb's new book, "Extraterrestrial: The First Sign of Intelligent Life Beyond Earth" (Houghton Mifflin Harcourt), examines evidence of an object of interstellar origin that the Harvard ...

The newly proposed alien-life evidence scale was outlined in a study published online Oct. 27 in the journal Nature that was led by NASA chief scientist Jim Green.

New evidence has been found that a wet-dry cycle once existed on Mars — one of the essential things needed for life. A new paper published in Nature examined images taken by the Curiosity rover ...

Life Top 10: Controversial pieces of evidence for alien life. Over the years many hints have emerged that there might be life beyond Earth. New Scientist looks at 10 of the most hotly-debated ...

A new study that claims to present evidence of alien life is being met with a healthy dose of skepticism in the scientific community. On July 31, a team of British researchers sent a balloon into ...