Neil deGrasse Tyson interviews Mars One co-founder Bas Lansdorp and discusses the idea of establishing a permanent human settlement on Mars with co-host Eugene Mirman and ...

Social Media-Savvy Astronauts are taking over the cosmos. Dr. Neil deGrasse Tyson and Chris Hadfield, the first Canadian astronaut to walk in space, discuss social media ...

Astronauts including the legendary Peggy Whitson, who spent 665 days in space, speak about how their concepts of home have changed. ...

An investigation into the mystery of the human brain and the chain of events that produced the anomaly of human intelligence. ...

The story of how for nearly 4 billion years, life microbes, plants and animals have emerged and sculpted the planet's surface and atmosphere in the strangest of ways. ...

The story of how and why life began on Earth, and what makes our planet different from the others. ...

A portrayal of how Earth was born in a cosmic storm and shaped by violence. ...

Although not their first choice, NASA asks Howard to throw the first pitch for a Los Angeles Angels game on Space Day. Non-athletic Howard is worried that he will make a ...

Penny sitting on the floor during dinner makes everyone in the gang think that Leonard and Sheldon should invest in a dining room table, that is except for Sheldon, despi ...

Penny tries to figure out what her feelings for Leonard are, since she is happy with their relationship, yet she is unsure if she is in love just yet. She confides in Ber ...

As Howard is in the Soyuz space capsule awaiting the launch to the International Space Station, his new wife and their friends are at Leonard and Sheldon's apartment watc ...

As Leonard is feeling sleep deprived because of Sheldon, Leonard is in no mood to have to drive Sheldon to the dentist's office as per the roommate agreement. As such, Le ...