In about 5 billion years, our Sun will run out of fuel and transform into a massive red giant. When that happens, Earth could ...

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other. In some cases, the stars are far enough apart that planets can ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's ...

Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 ...

As a particularily active sunspot region rotates into view, the sun has released its largest solar flare since June.

Aging stars may be destroying the giant planets orbiting closest to them, according to a new study by astronomers at UCL and ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

What planetary treat is happening in the night sky over California and the rest of the Northern Hemisphere How to see planets with the naked eye Why Pluto isn't part of the 2025 - or any other - ...