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Introducing NOVA's Financial Lab

Introducing NOVA's Financial Lab

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1:22
How Long Does Covid-19 Immunity Last?

How Long Does Covid-19 Immunity Last?

Video
8:43
Yes, There's Really a Frozen Exoplanet named Hoth

Yes, There's Really a Frozen Exoplanet named Hoth

Video
3:07
Sagittarius A*: The Void at the Center of our Galaxy

Sagittarius A*: The Void at the Center of our Galaxy

Video
1:54
Was the Big Bang an Explosion or Something Else?

Was the Big Bang an Explosion or Something Else?

Video
3:01
Could a "Dune" Sandworm Exist in Real Life?

Could a "Dune" Sandworm Exist in Real Life?

Video
7:07
The Link Between High-Potency Cannabis Use and Psychosis

The Link Between High-Potency Cannabis Use and Psychosis

Video
4:42
Take a Ride into a Supermassive Black Hole

Take a Ride into a Supermassive Black Hole

Video
2:41
Scientists Capture the First Light from the Big Bang

Scientists Capture the First Light from the Big Bang

Video
2:57
In Galaxies Far, Far Away, Some Planets Have Two Stars

In Galaxies Far, Far Away, Some Planets Have Two Stars

Video
2:38
Where Did the Cannabis Plant Come From?

Where Did the Cannabis Plant Come From?

Video
4:10
Meet the Marvelous Christmas Tree Worm

Meet the Marvelous Christmas Tree Worm

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5:20
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NOVA

The Milky Way and Andromeda Galaxies will Someday Collide

Astronomers estimate that in about 4.5 billion years, the Milky Way and Andromeda galaxies will collide. Here's how it'll happen.