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PBS Space Time

How Do You Measure the Size of the Universe?

Video duration: 5:36Expires: 10/22/20Video has closed captioning.

The universe is HUGE. But, there is only so much of the universe we can ACTUALLY see, and if we wanted to measure that FINITE space, how would we do it? A gigantic ruler? One really long car ride? Or maybe it's something even more spectacular, something that involves not only the observable universe as it is NOW, but how it was when it was first BORN?

Episodes of PBS Space Time38

Video thumbnail: PBS Space Time The True Nature of Matter and Mass

PBS Space Time

The True Nature of Matter and Mass

Are matter, mass, and time real?

8:34

The True Nature of Matter and Mass

8:34

Video thumbnail: PBS Space Time The Higgs Mechanism Explained

PBS Space Time

The Higgs Mechanism Explained

What is the Higgs field and why is it a fundamental part of our universe?

7:49

The Higgs Mechanism Explained

7:49

Video thumbnail: PBS Space Time How to Build a Blackhole

PBS Space Time

How to Build a Blackhole

Let’s build a black hole!

10:58

How to Build a Blackhole

10:58

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