To Scale: The Solar System • 2015

Category: Astronomy
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On a dry lakebed in Nevada, a group of friends build the first scale model of the solar system with complete planetary orbits: a true illustration of our place in the universe.

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Mars

The fourth planet from the sun and the outermost of the terrestrial planets, Mars has long been a popular spot for missions and imagination. Phil walks you through the planet's topography, core, and features. We'll take a look back to Mars's past and makes predictions for its future, including the possibilities for human life.

15Crash Course AstronomyAstronomy

Cosmonauts: How Russia Won the Space Race

When Neil Armstrong stepped onto the moon in 1969, America went down in popular history as the winner of the space race. But that history is bunk. The real pioneers of space exploration were the Soviet cosmonauts. This documentary combines rare and unseen archive footage with interviews with the surviving cosmonauts to tell the fascinating and at times terrifying story of how the Russians led us into the space age. A particular highlight is Alexei Leonov, the man who performed the first spacewalk, explaining how he found himself trapped outside his spacecraft 500 miles above the Earth.

2014 • Astronomy

The Humans

Carl Sagan talks about our place in the universe

9/10The Sagan Series • 1989 • Astronomy

Galaxies

Witness the evolution of galaxies; from clouds of cold gas floating in the voids of space 13 billion years ago, to the magnificent spirals that fill our night.

S1E4How the Universe Works • 2010 • Astronomy

Do we live in a multiverse?

It has long been thought that our universe is all there is, but it is possible we may live in just one of many.

The Economist • 2015 • Astronomy

Telescopes

Today Phil explains how telescopes work and offers up some astronomical shopping advice.

#6Crash Course AstronomyAstronomy