Is there Life? • 2014 • episode "S1E2" • Mars: The Secret Science Series 1

3:22

Carl Sagan talks about our place in the universe

9/10 • The Sagan Series • 1989 • Astronomy

51:43

With repeated triumphs and new challenges comes increasing risk, until loss breaks the pattern. The white-knuckle suspense thriller of Apollo 13's famous near-disaster is only a triumphant prelude to darker moments ahead. The launch of the space shuttle program promises routine trips to Earth orbit for many new astronauts. But just when that promise seems fulfilled, routine shuttle launches begin to bore the public. NASA responds by training a school-teacher to fly, in order to teach children lessons from space. Christa McAuliffe's life is tragically cut short as she and the rest of the crew perish aboard the shuttle Challenger. All missions are halted. Eventually the shuttle returns to orbit, for fifteen years of successful missions until disaster strikes again with the shocking loss of Columbia. It would be the beginning of the end for the shuttle.

S1E3 • The Space Age: NASA's Story • 2009 • Astronomy

11:22

Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a look at some of his favorite topics and the big questions that Astronomy allows us to ask.

46 • Crash Course Astronomy • 2016 • Astronomy

59:03

Professor Brian Cox takes a flight to the top of earth's atmosphere, where he sees the darkness of space above and the thin blue line of our atmosphere below. Against the stunning backdrop of the glaciers of Alaska, Brian reveals his fourth wonder: Saturn's moon Titan, shrouded by a murky, thick atmosphere.

S1E3 • Wonders of the Solar System • Astronomy

58:40

Imagine a world where dinosaurs still walk the earth. A world where the Germans won World War II and you are president of the United States. Imagine a world where the laws of physics no longer apply and where infinite copies of you are playing out every storyline of your life. It sounds like a plot stolen straight from Hollywood, but far from it. This is the multiverse. Until very recently the whole idea of the multiverse was dismissed as a fantasy, but now this strangest of ideas is at the cutting edge of science. And for a growing number of scientists, the multiverse is the only way we will ever truly make sense of the world we are in. Horizon asks the question: Do multiple universes exist? And if so, which one are we actually in?

Horizon • 2015 • Astronomy

83:37

In July 1969, history was made as 600 million people watched Neil Armstrong's giant leap for mankind on the surface of the moon. But behind these iconic images is an untold story. Now, 50 years later, Discovery and Science Channel celebrate the Apollo 11 moon landing with a two-hour television event, APOLLO: THE FORGOTTEN FILMS, that tells the complete story of this most audacious of missions. Featuring forgotten and never-before-seen footage from events surrounding the landmark mission, the documentary by Duncan Copp traces the decade's worth of effort involving half a million scientists that was required to enable that "one giant leap for mankind". The archives reveal the incredible lengths an army of engineers, scientists and astronauts went to, to achieve America's greatest technological feat.

2019 • Astronomy