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Watch over 2 000 of HISTORY’s most fascinating documentaries and series  anytime  commercial-free.

HISTORY VAULT

It may seem like seem like science fiction, but the cosmos isn't just something way out there. Many times in human history, objects or forces from space have changed the course of life on earth.

The Universe

When Space Changed History

Board a virtual space ship to travel along with a variety of comets; long and short period, sun grazers, comets masquerading as asteroids and comets still in deep freeze in the Oort cloud.

Ride the Comet

The key to understanding the universe seems to be understanding its smallest components. This program explains some of the strange behavior scientists have discovered at the smallest scales.

Microscopic Universe

This episode discusses the coldest places in the universe from labs on earth to super cold places in our solar system, galaxy and beyond.

Deep Freeze

An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, at how other objects in our local area influence life on Earth, and how Earth's place in the galaxy makes it livable.

Our Place in the Milky Way

From the sweep of a pulsar, to the deafening roar of our boiling sun this episode explores the undiscovered soundscapes of the solar system, the galaxy, and the entire cosmos.

Alien Sounds

The biggest objects, farthest distances, and fastest speeds are made relatable through extreme physical analogies.

How Big, How Far, How Fast

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S7 E5 | Microscopic Universe