Black holes are among the most enigmatic and fascinating objects in the universe. Their sheer existence challenges our understanding of the cosmos and raises deep questions about the nature of reality ...

Deep space is full of mysteries and wonders that continue to baffle scientists, from strange planets to outlandish stellar ...

Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an ...

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

The discovery resets our understanding of how ice behaves in the frigid vastness of deep space and could influence our ...

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

In this episode of The List Show, host and Mental Floss editor-in-chief Erin McCarthy covers some facts about space that are going to warp your perspective.