Something strange is moving through our solar system — and it’s making headlines everywhere. The mysterious object, known as ...

A comet known as 3I/ATLAS made news earlier in July when it was confirmed to have originated outside of Earth's solar system. But is 3I/ATLAS definitely an icy comet? A trio of researchers that most ...

The object, estimated to be the size of a city block, is only the third known interstellar visitor to our solar system since ...

If it is a galaxy, it would be the oldest known galaxy in the cosmos, but it could also be a brown dwarf or an early black hole.