The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system.

A team of astronomers has discovered the most-distant body ever observed in our Solar System. It is the first known Solar System object that has been detected at a distance that is more than 100 times ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

The search for interstellar visitors has taken an unexpected turn. While previous discoveries like ‘Oumuamua and Comet ...

The two stories (here) and (here) are set to be published in the Planetary Science Journal and detail evidence for a cluster of objects just outside of the Kuiper Belt, which is approximately 40 to 50 ...

There may be more than meets the eye with The Kuiper Belt, a ring comprising thousands of large, icy objects and dwarf planets that encircle our solar system. A yet-to-be-published study, spotlighted ...

The current understanding of the Kuiper Belt is that it extends from the orbit of Neptune at 30 astronomical units and is 50 astronomical units away from the Sun. One astronomical unit (AU) is the ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our solar system—only the third ever spotted, though scientists suspect many more may slip past unnoticed. The ...

It’s possible the trans-Neptunian object, dubbed 2017 OF201, is large enough to qualify as a dwarf planet, making it an “extreme ‘cousin’ of Pluto,” according to Institute for Advanced Study postdoc ...