This 2020 astronaut photo shows the unusual cetacean-like shape of Belize's Lighthouse Reef. It's home to the famous Great ...

A massive coronal hole on the Sun is directing a stream of solar wind towards Earth this week, expected to arrive between ...

Astronomers have achieved the first radio image of a supermassive black hole pair, using the retired Russian RadioAstron ...

After decades of searching, astronomers have imaged two supermassive black holes in orbit around each other at the heart of ...

The sun's returning coronal hole could stir up geomagnetic storms and dazzling auroras under clear, dark skies this weekend.

Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black ...

Observations by a system of radio telescopes have offered the first visual evidence for the existence of black hole pairs.

Astronomers spotted the celestial standoff in the heart of the galaxy OJ287, around five billion light-years from Earth.

SXS—Simulating eXtreme Spacetimes—is an ongoing scientific collaboration that has been generating simulations of dramatic ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

A new World Meteorological Organization (WMO) report offers good news about Earth's ozone layer, which is on the road to a recovery to 1980 values in the coming decades--a positive sign for the health ...

For the first time, astronomers have imaged two black holes orbiting each other in space.Spotted through the blurred ...