Return to the Moon • 2019

95:16

A two-part documentary recounting the Cold War space race between the United States and the Soviet Union. Through newly colorized archival footage and firsthand accounts, it follows the rivalry from early satellites and rocket development to espionage, surveillance, and the Apollo Moon landings.

2026 • Astronomy

43:01

A spectacular journey to the birth of stars and matter a billion years after the big bang. Scientists look for evidence of an extraordinary phenomenon known as the Cosmic Dawn, a dramatic moment in the history of the universe when the very first stars were created.

2015 • Astronomy

42:01

The possibility of a human civilization on Mars has seemed like a fantasy -- until now. We go behind-the-scenes at SpaceX, where Elon Musk shows us just how real this fantasy can be.

S1E3 • Mars: The Secret Science Series 1 • 2014 • Astronomy

42:25

A milestone in physics: In 2015, scientists proved the existence of gravitational waves. These waves travel billions of light-years through space, eventually reaching Earth and bringing us insights that were previously unattainable.

2021 • Astronomy

12:11

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"

#1 • Crash Course Astronomy • Astronomy

11:13

Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral patterns in it, formed by the traffic jams of stars and nebulae, where stars are born. The central region is shaped like a bar, and is mostly old, red stars. There’s also a halo surrounding us of old stars.

37 • Crash Course Astronomy • 2015 • Astronomy