PBS Anywhere

Providing Support for PBS.org

PBS Space Time

Is It Irrational to Believe in Aliens?

Video duration: 6:49Expires: 10/29/20Video has closed captioning.

Aliens! Could humans really be alone in this expansive universe? And if we're not, how come we've never made contact with other intelligent life? Everyone's thought about it; especially members of the scientific community. Join Gabe as he presents some of the most popular theories that scientists use to rationalize their support or skepticism of the existence of aliens.

Episodes of PBS Space Time59

Video thumbnail: PBS Space Time Can We Survive the Destruction of the Earth?

PBS Space Time

Can We Survive the Destruction of the Earth?

What do we do to protect ourselves from extinction level events?

10:34

Can We Survive the Destruction of the Earth?

10:34

Video thumbnail: PBS Space Time The Quantum Experiment that Broke Reality

PBS Space Time

The Quantum Experiment that Broke Reality

The double slit experiment radically changed the way we understand reality.

10:27

The Quantum Experiment that Broke Reality

10:27

Video thumbnail: PBS Space Time The Future of Gravitational Waves

PBS Space Time

The Future of Gravitational Waves

In 2015 LIGO announced the first detection of a gravitational wave... What happens next?

5:49

The Future of Gravitational Waves

5:49

Video thumbnail: PBS Space Time Juno to Reveal Jupiter's Violent Past

PBS Space Time

Juno to Reveal Jupiter's Violent Past

On July 4th 2016, the Juno spacecraft finally entered orbit around the planet Jupiter.

10:15

Juno to Reveal Jupiter's Violent Past

10:15

See all Episodes