Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months.

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

Within the image, thick clouds of cold hydrogen gas arrange themselves into ridges and wispy filaments. The deep red tones ...

Solar prominences occur when the sun’s plasma, flowing along the magnetic field lines that the sun creates, forms a loop into space along the edge of the sun’s disk. When a prominence becomes ...

Cloud 9 is a failed galaxy. It’s a clump of dark matter, called a dark matter halo, that never formed stars. But this failure ...

Nearly 14 years ago, NASA’s Curiosity rover landed on Mars for a mission to explore the red planet and discover if it had an ...

The Southern Lights may be visible from South Africa this evening with the right equipment, as a solar storm is expected to ...

The Helix Nebula is one of the most well-known and commonly photographed planetary nebulae because it resembles the “ Eye of ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

The Northern Lights could return to Northern California on Monday. A coronal mass ejection, known as a CME, arrived from the ...

From the deck of a ship or the window of a plane, it feels obvious that “down” points toward Earth and “up” points toward the ...