Artemis 2 will send a crew of four astronauts on a 10-day mission around the Moon. Here is the mission's flight path, step by step.

For the first time, scientists believe they have captured direct evidence of the mechanisms that trigger a solar flare. These massive explosions, generated by the Sun, release staggering amounts of ...

The Sky This Week from November 28 to December 5: 2025’s last Full Moon, a Super Moon ...

When Pioneer 10 flew by Jupiter on Dec. 3, 1973, its margin of survival was closer to the knife-edge than it seemed. It absorbed a thousand times the lethal dose of radiation for a human, suffering ...

Deep-sky objects are celestial objects that exist outside our solar system. Three major types of deep-sky objects are nebulae, star clusters, and galaxies.