Researchers have believed that Segue 1, a puny galaxy orbiting the Milky Way just 75,000 light-years away, was packed with dark matter, a substance in space that doesn't shine or interact with light.

Sunspot AR3229 erupted with an X2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

The observatory’s proximity to Kirkwood Avenue, a hotspot for IU students, helps attract people outside of the astronomy ...

Sunspot AR3234 blasted an X2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

"Ten, nine, eight…” shouted students at St. Matthew’s as they sat behind a chain-link fence, watching a science experiment ...

A couple months back, astronomers officially confirmed the existence of “Betelbuddy,” Betelgeuse’s long-suspected companion ...

The gas giant WASP-18b belongs to a class known as ultra-hot Jupiters — giant, searing, gaseous planets that orbit perilously close to their stars. Researchers used a new technique called ...

Small and unassuming, Segue 1 is a nearby dwarf galaxy containing only a handful of stars—too few to provide the gravity ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Elizabeth C. Babcock, the founding director of the Smithsonian American Women's History Museum in Washington, D.C., returns ...

Earlier this year, many university departments slashed their incoming PhD classes in a last-minute scramble as the Trump ...

University of California, Irvine. An international team of researchers has identified a strong candidate for a nearby, potentially rocky exoplanet orbiting within its star’s temperate zone. The world, ...