Alien Planets Revealed

47:03

Astronaut Chris Hadfield has seen the bullet holes left by asteroids on Earth's surface. Our planet is vulnerable. Could we ever survive elsewhere?

6/10 • One Strange Rock • 2018 • 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

14:43

Where and how are we going into space post Space Shuttle? Further travel in space is inhibited by the challenges of gravity wells and the science and cost of developing vehicles that can transcend them. How can the moon possibly help with this problem and move space exploration to the next level?

S1E1 • Destination: Moon • 2016 • 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

61:05

Sagan discusses comets and asteroids as planetary impactors, giving recent examples of the Tunguska event and a lunar impact described by Canterbury monks in 1178. It moves to a description of the environment of Venus, from the previous fantastic theories of people such as Immanuel Velikovsky to the information gained by the Venera landers and its implications for Earth's greenhouse effect. The Cosmos Update highlights the connection to global warming.

4/13 • Cosmos: A Personal Voyage • 1980 • Astronomy

42:28

Quasars are the brightest and most powerful objects in our universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.

S6E7 • How the Universe Works • 2017 • Astronomy