NASA’s Near-Earth Asteroid Scout (NEA Scout), a cubesat launching on Artemis 1, will navigate space and visit a near-Earth asteroid by sailing on sunlight.

Astronomers have discovered two asteroids in the asteroid belt between Mars and Jupiter that are much redder than the others. The researchers say they likely migrated inward from the outer reaches of the solar system.

In August 2021, the year's farthest quarter moon occurs as the moon reaches last quarter and closest lunar apogee at nearly the same time.

Planet Nine, according to scientists, has an orbit that lies more than 300 AU from the sun and is tilted about 16 degrees from the ecliptic.

Capture the Atlas announced its 2021 Milky Way Photographer of the Year. This annual edition showcases 25 of the best Milky Way photos from around the world.

Interstellar objects may dominated the Oort Cloud, according to two scientists from Harvard. Their calculations are based on the interstellar comet Borisov.

Nuclear fusion ignition was triggered in a lab for the first time, and it could lead the way to clean energy and insights into the Big Bang.

NASA's Terra satellite caught images of streamers of smoke from late summer 2021 fires in California during its 115,254th orbit of Earth.

Scientists have found evidence that fragments of Ceres' icy crust are sitting on the surface of the dwarf planet. They were exposed by impacts from asteroids or other rocky debris. For scientists, the finding provides new clues about the interior and evolution of this enigmatic world.

Comet ATLAS was seen to break apart in 2020, while still relatively far from the sun. An astronomer thinks our early ancestors saw this comet.