The James Webb Space Telescope has shown that the Milky Way’s black hole is constantly blazing with light, releasing long flares as well as short flashes every day.

Astronomers have been trying to detect atmospheres on planets orbiting TRAPPIST-1, but bursts of radiation from the star make ...

Black holes are invisible, yet they are among the brightest things in the universe. If a star wanders too close to a black ...

NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event. The image shows a subset ...

What does an artificial eclipse look like? One space agency's satellites recently accomplished this task as part of a mission ...

Solar flares are ranked on a scale from A to X, ... The higher the number, the stronger the flare — and Tuesday’s X2.7 eruption was enough to light up solar observatories around the world.

Giant flares from magnetars, highly magnetized neutron stars, can forge heavy elements such as gold and platinum through the r-process, accounting for up to 10% of these elements in the Milky Way.