There’s a lot of stuff in space that we know is there but we can’t see very well or at all. Some of this stuff is known as mysterious dark matter, others are things like dark comets, which as their name suggests, are far more difficult to see from Earth than something like Tsuchinshan-Atlas. Dark comets range in size from a few feet to several hundred yards, are often composed of rare minerals and tend to spin so fast they are hard to detect.
Despite these obstacles, however, scientists publishing in the journal Proceedings of the National Academy of Sciences say they have discovered more dark comets in our solar system than previously thought. In fact, thanks to their research, the number has now doubled.
