When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were ...

For decades, astronomers have chased fleeting hints that something alive might be lurking beyond Earth, only to watch each ...

Scientists claim that first extraterrestrial contact will be a loud event impossible to ignore, not a subtle signal.

Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — ...

The Bank of England has been urged by former senior analyst Helen McCaw to prepare for the possibility of extraterrestrial ...

A former senior analyst for The Bank of England warned the bank to prepare for alien contact, citing the United States' ...

Scientists may need to broaden their horizons in their search for alien life.

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

A major claim in the older media cycle was that NASA removed the book and related materials. Whatever happened during the original wave of reporting, the current reality is clear: NASA now provides an ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

For many years, astronomers have been looking for extraterrestrial life. In doing so, astronomers have narrowed their search ...