For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it -- the flickering star is 2.2 million ...

For decades, scientists have tried in vain to accurately predict solar flares—intense bursts of light on the sun that can ...

NASA's Parker Solar Probe has flown into the Sun's corona. Structures known as coronal streamers and the Milky Way can be ...

A Sunspot AR3873 erupted with an X1.8-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks. Footage ...

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the ...

The ESA Solar Orbiter has provided a stunning new look at the Sun by combining 25 high-resolution images. This mosaic offers a detailed view of the solar surface, including sunspots and granules, ...

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.

The spacecraft built and operated by Texas-based Firefly Aerospace launched in the early Monday hours from Florida aboard a ...

The SpaceX rocket took off from NASA’s Kennedy Space Center in Florida at 1:11 a.m. ET. Tucked inside the rocket’s bullet-shaped nose cone were the two lunar landers — hailing from two different ...

A star system 5,000 light-years from Earth, surrounded by layers of dust, could help scientists better understand the final ...

From the total lunar eclipse in March to three epic supermoons this fall, these are the best celestial events of 2025 that are worth traveling for (plus one to look forward to in 2026!).

Firefly Aerospace hopes to share beautiful images from the Moon with the world if it can successfully stick its first landing attempt on the lunar surface, all while bringing a slew of NASA payloads ...