Evidence of our solar system's history comes from its chemical ... the Kuiper belt beyond the orbit of Neptune, and the Oort cloud. Our Solar System is full of mysteries, but if the inner planets are ...

NEOWISE comes to us from the distant outer reaches of the solar system, having spent most of its life in a frigid field of icy bodies called the Oort cloud ... of the best evidence yet.

Astronomers have identified the largest and most distant water reservoir ever detected in the universe. This immense ...

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the sun and eight planets as it extends trillions of miles into deep space.

Scientists said a comet known as the Oort Cloud comet — or C/2023 A3 Tsuchinshan-ATLAS — will pass by Earth on Saturday for ...

However, it's a once-in-a-lifetime opportunity as it won’t be back for another 80,000 years. The Oort Cloud comet, called C/2023 A3 Tsuchinshan-ATLAS, was discovered in 2023, approaching the inner ...

Astronomers have yet to confirm the existence of exomoons, but a molecular signal around a far away star offers some of the best evidence yet ... argues that a sodium cloud whizzing around ...