To Pluto and Beyond • 2016 • episode "S1E3" • Curiosity Retreats: 2016 Lectures

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

53:16

Professor Brian Cox explores the solar system’s ice giants, frozen moons and worlds where ice behaves in unimaginable ways.

S1E4 • Solar System • 2024 • Astronomy

42:04

New discoveries reveal an astonishing supermassive black hole that was born during the earliest days of the cosmos, and finding out how this giant grew so large so quickly may help to explain the very formation of the universe itself.

S9E9 • How the Universe Works • 2021 • Astronomy

0:00

In unpredictable freshwater environments, parents must time births and adapt to shifting elements to keep their young alive.

S1E4 • Parenthood • 2025 • Astronomy

176:40

2003 - millions watch live as Columbia breaks up in the sky over Texas, killing all on board. NASA, loved ones and investigators share how an incredible journey ended in tragedy. Chapter 1: As Nasa prepares Space Shuttle Columbia for its 28th mission, excitement and trepidation build amongst the astronauts and their families as they count down to launch. This programme hears from the seven astronauts - a mixture of veterans and rookies - and their families as they train for an awe-inspiring journey of a lifetime. Chapter 2: Nasa engineers analyse film footage of a piece of debris striking the shuttle Columbia 81 seconds after launch. What no-one yet knows is whether any serious damage has been done to the vehicle or the tiles which protect the vehicle against the intense heat of re-entry. But calls for photographs to be taken of the shuttle using satellites go unheeded. Meanwhile, in space, the crew continue their mission, unaware of any concerns inside Nasa. Chapter 3: Sixteen minutes from landing, mission control lose contact with the crew of Columbia. On the shuttle landing strip, families waiting to welcome their loved ones back home are swiftly ushered away. In the skies over Texas, locals hear a loud explosion, and debris strikes the ground in multiple locations. The fears of some Nasa engineers are coming true: Columbia is lost and there are no survivors. Following the disaster, Nasa comes under increasing pressure from the media to provide answers.

2024 • Astronomy

54:10

In the Orion constellation, Betelgeuse, a red star 1,000 times the size of the Sun, is an old star that scientists predict will soon come to a violent end. Will we see a supernova explosion 100 times brighter than a full moon in our lifetimes? Will the explosion release rays harming life on Earth?

3 • Cosmic Front • 2014 • Astronomy