From planet-scorching stellar outbursts to cataclysms so powerful they shiver the very fabric of spacetime, these are some of the biggest blasts our cosmos has to offer ...

The findings are a big clue as to why the far and near hemispheres of the moon look so different.

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

For years, the James Webb Space Telescope has been spotting enormous black holes in the early universe that defy all ...