For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

The latest tranche of declassified “UAP” files don't reveal much.

For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs of alien life. Despite its extensive efforts, the universe remains eerily ...

Add Yahoo as a preferred source to see more of our stories on Google. This image of interstellar comet 3I/ATLAS was captured by the Hubble Space Telescope’s Wide Field Camera, July 21, 2025. (photo ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

The discovery bemused residents of a small town in northeastern Australia. The objects appear to be junk from a space launch, the country’s space agency said.