Gift of Apollo • 1989 • episode "8/10" • The Sagan Series

10:02

* Gravity is a Force * Different Types of Orbit * Escape Velocity * Weightless Mass

#7 • Crash Course Astronomy • Astronomy

42:06

Venus is a hellish alien world believed to be impossible to extraterrestrial life; but new discoveries reveal shocking evidence within its deadly atmosphere and on its strange surface, all pointing to a possible future for planet Earth.

S1E4 • Mysteries of our Universe: Our Solar System • 2020 • Astronomy

50:00

We have been mesmerized by Venus since ancient times. Was this a paradise world teeming with life? This film tells the remarkable story of how spacecraft revealed the true nature of Earth’s enigmatic twin, that it’s a lifeless hell – and that the Earth could follow suit.

3/8 • Secrets of the Solar System • 2020 • Astronomy

59:02

To coincide with the switch-on of the Large Hadron Collider, the world's largest particle accelerator complex, Professor Jim Al Khalili from the University of Surrey delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang. The remarkable idea that our universe simply began from nothing has not always been accepted with the conviction it is today and, from fiercely disputed leftfield beginnings, took the best part of the 20th century to emerge as the triumphant explanation of how the universe began. Using curious horn-shaped antennas, U-2 spy planes, satellites and particle accelerators, scientists have slowly pieced together the cosmological jigsaw, and this documentary charts the overwhelming evidence for a universe created by a Big Bang. Professor Al-Khalili comments: "This one-off documentary was made by the BBC Horizon team and was great fun to be involved with. The archive footage is fantastic too."

Horizon • 2008 • Astronomy

59:02

Brian Cox considers the nature of time. He explores the cycles of time that define the lives of humans on Earth, and compares them to the cycles of time on a cosmic scale.

1/4 • Wonders of the Universe • Astronomy

42:06

Experts aim to uncover what is hidden beneath Jupiter's violent storms. The story of how humans built machines that not only survived the perils of Jupiter, a massive and dangerous planet surrounded by a wreath of deadly radiation, but revealed its innermost secrets.

S1E2 • Mysteries of our Universe: Our Solar System • 2019 • Astronomy