USA: ASTRONOMERS have spotted the earliest known signs of rocky planet formation around a young, sun-like star for the first ...

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and meteoroids. The exact boundaries of the solar system ar ...

The punishing radiation appears to be causing the planet to shed its atmosphere at a rate of at least 1 trillion grams per second, according to a new study involving NASA 's Chandra X-ray Observatory.

"This is a big step in understanding the outer solar system," team leader Rosemary Pike from the Center for Astrophysics | ...

In a recent episode of SETI Live, Communications Specialist Beth Johnson spoke with Ian Pamerleau, lead author of a new study ...

A baby planet is shrinking from the size of Jupiter with a thick atmosphere to a small, barren world, according to a new ...

Despite the powerful telescopes that modern astronomers have to work with, the distant reaches of the Solar System are still ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii ...

According to the paper laying out the research behind the discovery, "TOI-1846b is a super-Earth-sized planet, with a radius ...

Beyond Neptune, a smaller ‘ninth’ planet has been identified in the Kuiper Belt. If the object is confirmed as an actual planet, it would make it the ninth in our solar system ...

Stars and planets are naturally associated with one another. While some planets have gone rogue and are drifting through space, the vast majority are in solar systems, where they're gravitationally ...