Swallowed by a Black Hole

12:25

We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than about 2.8 times the Sun’s mass to form a black hole. Black holes come in different sizes, but for all of them, the escape velocity is greater than the speed of light, so nothing can escape, not matter or light. They don’t wander the Universe gobbling everything down around them; their gravity is only really intense very close to them. Tides near a stellar mass black hole will spaghettify you, and time slows down when you get near a black hole — not that this helps much if you’re falling in.

33 • Crash Course Astronomy • 2015 • Astronomy

42:29

NASA's Juno spacecraft is part of a cutting-edge mission to explore the mysteries of Jupiter. As this mighty probe is pummeled with deadly radiation, it gathers new data that could change everything we know about the solar system's biggest planet.

S8E6 • How the Universe Works • 2020 • Astronomy

43:01

An exploration of the dramatic fate of our future descendants, the technology they'll need to survive the end of this world billions of years from now and our options for colonizing and starting again on a new planet somewhere far from Earth.

S1E3 • Space's Deepest Secrets • 2016 • Astronomy

53:09

In summer 1969, Apollo 11 succeeded as the first manned mission to land on the moon. The next challenge was to design and build the first exploration vehicle. It had to allow astronauts to explore the moon's surface, but it had to fit in just a meter square space!

15 • Cosmic Front • 2014 • Astronomy

58:55

The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees, the astronomer royal, has taken up the search for extra-terrestrials. Looking for aliens is no longer science fiction - it is a question that's engaging some of the greatest minds in science. As our knowledge of the universe has increased, we're getting closer to answers. Many scientists now think we live in galaxy with a billion Earth-like planets, many of which may be teeming with life. But what kind of life? Has anything evolved into beings we could communicate with? This film gets inside the minds of the scientists considering one of the most exciting and profound questions we can ask - are we alone in the universe? Professor Rees thinks we may have our idea of what an alien is like all wrong. If he's right, it's not organic extra-terrestrials we should look for, it's machines.

2016 • Astronomy

58:24

Uses the latest, most detailed imagery to reveal the monthly life cycle of the moon. From Wales to Wyoming, Hong Kong to Croydon, the programme finds out how the moon shapes life on Earth, as well as exploring its mysterious dark side and discovering how the moon's journey around Earth delivers one of nature's most awe-inspiring events - a total solar eclipse. And at the end of a remarkable year of lunar activity, we find out why so many supermoons have been lighting up the night sky.

2018 • Astronomy