Scientists say exoplanet 100 light years from Earth may be covered with deep ocean
The exoplanet orbits "a nearby visual-binary M dwarf" star
How to watch the Artemis 1 launch online
The whole world will be able to follow along from home, with live coverage of the launch and the mission as it progresses
Earth was hit by another huge asteroid at the same time as the one that wiped out dinosaurs, vast crater suggests
The new crater, nicknamed Nadir, appears to have been caused by something that would be comparably destructive on its own