Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

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.

What is the Solar System truly like? In this video, we take a closer look at real images captured by NASA and other space agencies, showcasing our planets and the vast beauty of the Milky Way without ...

Once a realm of imagination and stargazing, the Solar System has now been revealed in stunning clarity through decades of ...

This new dwarf planet may exist at the edge of the solar system, possibly disproving Planet Nine's existence. This is the story of that newly encountered planet.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show.

I am an astrophysicist and astrobiologist with over 20 years of experience studying extrasolar planets – which are planets beyond our solar system. You may like ...

Two distant planets lie 1° apart in the morning sky, visible together in the same field of view through binoculars or a telescope.

The Proba-3 mission, consisting of two spacecraft that fly in close formation to study the sun, has returned images of the first ever artificial solar eclipse ...