How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest ...

A tiny, obscure animal often sold as aquarium food has been quietly protecting our planet from global warming by undertaking an epic migration, according to new research. These "unsung heroes" called ...