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

Our solar system has eight planets but in recent years, astronomers have theorised there could well be a ninth planet that's hiding in our solar system we've not been able to see yet.

Astronomers have uncovered evidence of a potential second Kuiper Belt, expanding the boundaries of our solar system. Here's ...

The 11 objects discovered could be a new class of objects orbiting in a “ring” in the distant reaches of the solar system.

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

The search for the elusive "Planet Nine," a world shrouded in mystery and debate, may soon be resolved. Advances in ...

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 ...

These are known as Kuiper Belt objects or KBOs, and astronomers have just found hints of an unexpected rise in their density, ...

Brown, who is among the co-discoverers of Sedna, told the publication, “Some of our earlier hypotheses, before we realized ...

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Google Maps in Space lets you "walk" the surface of the Moon, Mars, Venus, and other entities in the Solar System, as well as ...

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 ...