A 900-year-old cosmic mystery surrounding the origins of a famous supernova first spotted over China in 1181AD has finally been solved.

An international team of researchers has generated an entire virtual universe, and made it freely available on the cloud to everyone.

Commercial flight crews have to work with the occupational hazard of aviation radiation exposure. Aviation guidelines aim to mitigate it.

The first 3D-printed stellar nurseries are highly polished spheres about the size of a baseball, representing star-forming clouds of gas.

The familiar star at the center of our solar system has had billions of years to mature and ultimately provide life-giving energy to us here

Brown dwarfs aren't quite stars and aren't quite planets, and a new study suggests there might be more lurking in our galaxy than known.

Black holes are more than just massive objects that swallow everything around them—they're also one of the universe's biggest energy sources

Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant.

Researchers found the solution to an intriguing paradox, opening up a new window for exploring the elusive magnetic fields of stars

Scientists have solved a long-standing mystery about the Sun that could help astronomers predict space weather and geomagnetic storms

The researchers detected the stars, whose rhythms arise from internal sound waves and provide the opening chords of a symphonic exploration

In a world-first, astronomers have captured the first moments of a supernova—the explosive death of stars—in detail never-before-seen.

A star in a distant galaxy blew up in a powerful explosion, solving a one thousand year old astronomical mystery

A team led by astronomers at UC Santa Barbara have confirmed the existence of an elusive new type of supernova