earth

We worked out how many trips each of the solar system's eight planets has taken around the sun over the past 4.6 billion years.

Humans will likely die long before our planet does.

A recent solar explosion that almost reached "X-class" status has hurled a massive coronal mass ejection toward Earth, which will likely hit our planet and trigger a geomagnetic storm on Dec. 1.

Earth will become too hot to handle in a billion years. There's a (very) remote chance a passing star could save us by knocking our planet back into the habitable zone.

The NISAR satellite, a collaboration between NASA and India's space agency ISRO, will help scientists monitor how climate change is affecting Earth's varied landscapes.

Exposure to cosmic radiation and weightlessness in space could increase the risk of astronauts developing erectile dysfunction, according to research in rats.

A massive sunspot region made up of at least six different sunspot groups has emerged on the sun's nearside. The "archipelago" of dark patches is spitting out solar storms at an alarming rate and Earth will soon be in the firing line.

The massive volcanic comet 12P/Pons-Brooks, which grows giant horns when it erupts, has exploded for a third time in five months as it continues to race toward the sun.

A powerful explosion from the sun briefly opened up an enormous valley on the solar surface that was more than twice as wide as the contiguous U.S. and seven times longer than Earth.

Mystery blobs in Earth's mantle may be chunks of a Mars-sized space rock that crashed into our planet 4.5 billion years ago, scientists discover.