Scientists have used data from a long-retired NASA Dawn spacecraft to solve the mystery surrounding the origins of the ...

IT is easy to feel like we know nothing about our universe, and unexplained stellar objects are the most puzzling feature of ...

Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did ...

Jupiter" exoplanet called 2M1207b, precisely 20 years ago this week. This was the first direct visual confirmation of a world ...

A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

Our solar system might still bear the scars from an extremely close shave with an alien star. Such an encounter – the closest pass we know of – would have shaken up objects on the outskirts and might ...

The Vera C. Rubin Observatory could be key to discovering a ninth planet in our Solar System that has so far remained in ...

Astronomers have uncovered a surprising group of frozen bodies orbiting the Sun, far beyond the Kuiper Belt. Using the Subaru ...

Mexico, N.Y. – Malaki Sandejas, 8, loves a dwarf planet. Sitting next to his mom on their couch, he rattles off the five in our solar system. “The dwarf planets are Haumea, Makemake, Eris, Ceres and ...

A star’s flyby likely altered the orbits of trans-Neptunian objects beyond Neptune that changes how we view the solar ...

According to the experts, the mysterious objects could be essential for a better understanding of the formation of the solar ...

A brand-new group of frozen objects, orbiting the sun out beyond the distant Kuiper Belt, has been spotted by the Subaru ...