"Once this smeary object in a sky survey in Chile has been confirmed as the third verified interstellar object, two communities who at best are polar opposites react identically to it: they start to ...

Mars' strange gullies are not carved by water as once thought. New research shows sand and seasonal carbon dioxide ice are the main sculptors. This discovery reshapes our understanding of Mars' ...

Perchlorate, a toxic substance found in Mars dirt, could help the bacterium Sporosarcina pasteurii strengthen bonds between particles of regolith.