How Big is The Universe?

Journey to the edge of the Observable Universe

How Did The Universe Begin?

A major G4 to G5 geomagnetic storm is expected to hit Earth today.

We shrunk Cleetus McFarland’s Neighbor

A major G4 to G5 geomagnetic storm is expected to hit Earth today. G5 is the highest the scale goes. This could bring the Northern Lights extremely far south (last night's G4 reached Texas), but there's a catch. We won't know if the storm is a

The Universe: New Evidence of Parallel Worlds (S3, E2) | Full Episode | History

Exploring our Mind-Blowing Universe | BBC Earth Science

Origins of the Universe 101 | National Geographic