The Small Magellanic Cloud, a dwarf galaxy about 200,000 light-years from the solar system, can be seen with the naked eye ...

NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

NASA’s Mariner 10 space probe was the first spacecraft to complete a flyby of Mercury. The first of its three encounters with the planet took place on this day in ...

The ice giant officially joins the lineup of planets with auroras, completing the set of all eight planets in the Solar ...

A striking new image from the James Webb Space Telescope shows a rare object called an Einstein ring. This shows what appears to be a ring-shaped object in the sky, but is actually created by two ...

Plus: A solar eclipse and an occultation of the Pleiades as our satellite skims through several constellations in the sky ...

"This mission's trailblazing research is rewriting the textbooks on solar science by going to a place no human-made object ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

NASA’s Curiosity rover has unearthed the largest organic molecules ever detected on Mars—possible fragments of fatty ...

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory.

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.