Molecular cloud

January 23, 2016

Can there really be a planet in our solar system that we don't know about?

How skeptical should we be, and how will we find out if this mystery planet is really out there? Scientists have long suspected that our solar […]
December 18, 2015

Star Wars-style lightsaber spotted in space by Nasa

Nasa has spotted a huge lightsaber cutting through space, in an area of space clouds where new stars are born. The agency has released images of […]