The Sun is a powerful, awe-inspiring force at the center of our solar system. Its brilliance lights up our sky and sustains ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

The competition was co-ordinated by Gösta Mittag-Leffler, a Swedish mathematician and editor of Acta Mathematica. The king ...

Our sun, currently in its prime, is expected to shine for another 5 billion years. Eventually, it will transform into a red ...

These incredible images reveal the exact moment when planets began to form around a star 1,300 light-years from Earth.

Astronomers have discovered a new world circling the outer edges of our solar system. So far, there are only four known ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

Along with launching two NASA probes, the SpaceX Falcon 9 rocket carried five other satellites into orbit with goals ranging ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

Astronomers have said they observed the moment when planets start forming around a distant star for the first time, revealing ...

Astronomers have, for the first time, captured what they believe are the very first moments of rocky planet formation around a newborn star. Using advanced observations from NASA’s James Webb Space ...