The Webb Telescope is the successor to the Hubble Space Telescope. NASA said on September 8 that the new launch date is December 18.

A small asteroid skimmed close to Earth on September 7, 2021. Asteroid 2021 RS2 passed less than 10,000 miles (about 15,000 km) away.

What is gravitational lensing? When a massive object bends space, light traveling through the warped space results in rings, arcs or many points of light.

NASA's 2 Blue and Gold orbiters are part of the coming Mars ESCAPADE mission, which has now passed its final review. It'll launch to Mars in October 2024.

Star collision triggers supernova! Dramatic evidence that a black hole or neutron star spiraled its way into the core of a companion star and ... boom!

NASA's Perseverance rover has successfully cored its first rock on Mars. The good news comes after an earlier attempt failed in early August. The core sample will be stored onboard the rover for later return to Earth by a future mission.

The 1,001st near-Earth asteroid observed with planetary radar is 2016 AJ193. Scientists caught it with NASA's Goldstone antenna in late August 2021.

Milky Way season is wrapping up as September and October approach. Enjoy this gallery of some of the best photos of our galaxy from our readers.

Researchers at two universities in the U.S. have found that dusty ice on Mars may melt just below the surface. The liquid water produced could potentially support microscopic life.

Aurora alert! A pair of coronal mass ejections will reach Earth September 1-2, 2021. Though not dangerous to satellites or the grid, they might cause auroras.