Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

"The climate of this planet is extreme and nothing like that of Earth. The planet's dayside is so hot that elements typically ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

A new type of exoplanet has been discovered ... and giving scientists a tempting window into the otherworldly diversity of planets beyond our Solar System. Enaiposha, discovered in 2009, has piqued ...

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found ... our understanding of the Earth-Moon system and the broader solar system.

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a host of other puzzles connected to the solar system's deep past ...