Skip to Main Content

How to Signal Aliens

Everyone has their own opinion as to whether or not aliens exist. But let’s assume they do for a second and we wanted to let them know we're here!!!! How should we signal our species' existence through the expanse of space? There are a few options, but which is the most effective and the cheapest? Find out in this week’s episode of PBS Space Time!
Season 1 Episode 18 Length 06:14 Premiere: 06/17/15

Recent Episodes

Sponsored by:

Coral and blue background. Text reads Three production facilities create hundreds of hours of educational, cultural, and public affairs content each yearCoral and blue background. Text reads Three production facilities create hundreds of hours of educational, cultural, and public affairs content each year

Specials

Season 1 Episodes

Do Events Inside Black Holes Happen?
S1 E25 Length 11:50 Premiere Date 04/28/16

What Physics Teachers Get Wrong About Tides!
S1 E24 Length 09:09 Premiere Date 09/05/15

General Relativity & Curved Spacetime Explained!
S1 E23 Length 08:52 Premiere Date 07/29/15

Can You Trust Your Eyes in Spacetime?
S1 E22 Length 09:23 Premiere Date 07/15/15

The Leap Second Explained
S1 E21 Length 02:20 Premiere Date 07/08/15

Can a Circle Be a Straight Line?
S1 E20 Length 08:16 Premiere Date 07/02/15

The Calendar, Australia & White Christmas
S1 E19 Length 05:48 Premiere Date 06/24/15

How to Signal Aliens
S1 E18 Length 06:14 Premiere Date 06/17/15

Is Gravity An Illusion?
S1 E17 Length 10:17 Premiere Date 06/03/15

Habitable Exoplanets Debunked!
S1 E16 Length 10:46 Premiere Date 05/27/16

Could You Fart Your Way to the Moon?
S1 E9 Length 05:55 Premiere Date 04/08/16

Space Used to Be Orange!!
S1 E7 Length 05:27 Premiere Date 03/25/15

See All Episodes

caret down

TV Schedules

Upcoming

No upcoming airdates

Recent

No recent airdates

Explore KET