Solar System

The sunspot AR3835 erupted on Sunday (Sept. 22) during Earth's equinox when even a glancing blow can cause a geomagnetic storm.

In late June, the Chang'e 6 lunar lander returned to Earth with samples of the moon. Now, the first paper about these samples has been published.

NASA is seeking the public's help for innovative solutions to help Artemis astronauts navigate in and around the lunar south pole.

A video filmed by NASA astronaut Matthew Dominick shows a rare glimpse of Comet Tsuchinshan-ATLAS as seen from the International Space Station.

Tiny black hole "bullets" left over from the Big Bang could be passing through Mars at speeds in excess of 7,000 times the speed of sound, causing the Red Planet to "wobble."

During the morning hours of Sunday, Sept. 22, skywatchers will be able to watch a waning gibbous moon cross in front of probably the most popular of all the star clusters in the sky: the Pleiades.

The BepiColombo probe's flybys of Mercury have revealed just how sharply and rapidly the planet's local environment changes in response to the solar wind.

China's Chang'e 4 rover Yutu 2 has been working on the far side of the moon for nearly six years. It was designed to operate for just three lunar days, or about three Earth months.

A low-density, weak-gravity region has been found below Olympus Mons and the Tharsis volcanoes, while Mars' northern hemisphere is littered with puzzling high-gravity structures beneath the surface.

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore apart.