Do the periods of comets decrease because they lose mass every time they get near the Sun? Robert BaileyConover, Wisconsin ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Blue Ghost and New Glenn started off the year right. Many more launches are on the way, and many can be watched online.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

This month offers incredible views of six planets, including Venus-Saturn conjunction. See the dates for all of 2025's ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the spacecraft captured the imagery. Credit: Space.com | footage & orbit animation cou ...

Astrophysicists have imaged a large number of exocomet belts around nearby stars, and the tiny pebbles within them. The crystal-clear images show light being emitted from these millimeter-sized ...

In the photo from the space station, the comet is captured just above Earth’s horizon, which is illuminated by a bright light ...

Late on March 13 and on into the early hours of March 14 the moon will turn a spooky red color in the skies above the U.S.

Since 2018, we've seen 1ES 1927+654 generate jets in real time and found it may have a lone white dwarf orbiting near the ...

Chinese researchers are working on a new power station project that could gather and convert solar energy directly from space ...