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Season 1 Episode 25 | 6m 14s
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!
Aired: 04/03/16
Video has closed captioning.
Why is the Earth Round and the Milky Way Flat?
Our universe is not a very diverse place when it comes to shapes.
What’s Wrong With the Big Bang Theory?
We continue our search for a grand unifying theory of the Big Bang!
Why the Big Bang Definitely Happened
The actual moment of ‘the Big Bang’ is still a bit of a grey area within physics.
LIGO's First Detection of Gravitational Waves!
Gravitational waves have officially been detected by LIGO!
Will Mars or Venus Kill You First?
Our neighboring planets are not exactly the most hospitable places.
What is the Higgs field and why is it a fundamental part of our universe?
