What could happen if the largest asteroid ever hit Earth.

Hulk sees one of the worst extinction events up close and personal and it changes everything fans think about his strength.

"Everything that's happened has lead to this moment. You're going to do things people can't even fathom. It's on you to make ...

A massive meteor struck near Manson, Iowa, 74 million years ago, creating the U.S.'s largest impact crater and reshaping the ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

The curious minds at What If explore the catastrophic impact if the largest asteroid struck Earth without warning, revealing ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

Auroras occur when solar wind collides with Earth’s magnetic field, creating dazzling lights. Learn why auroras appear in red ...

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

A rare solar storm is lighting skies far from the poles, thrilling observers while quietly threatening satellites, power ...

"A strong magnetic field is very important for life on a planet." ...

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