Twin stars create an oxygen-rich atmosphere on Eden, where a teeming biosphere may parallel seasonal cycles of predation and reproduction o Earth.
It's hard to get to space.But there is a concept that might make it possible: the space elevator. How exactly does it work.
In a Nutshell • 2016 • Astronomy
With his trademark wit, Richard Hammond takes on the ultimate engineering project: how on earth do you build a planet that is just right for life? What do you need to build a planet like ours, and what happens if you get anything wrong? With eye-popping graphics, Richard Hammond opens up a cosmic toolbox to work it out. He's going to build the whole thing, piece by piece, from the top of a two-mile high tower in the Californian desert.
1/2 • Richard Hammond Builds... • 2013 • Astronomy
If a massive asteroid collides with earth, it could end life on our planet as we know it; new discoveries and cutting-edge tech reveal just how close we are to apocalypse and what it would take for the world's leading space agencies to stop it.
S8E1 • How the Universe Works • 2020 • Astronomy
Dark Matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to elude scientists today.
S10E3 • How the Universe Works • 2021 • Astronomy
The Sun created our Solar System and in a fit of cosmic cannibalism will engulf and destroy it. However, our Solar System will see many changes before the light of our star goes out. So, what will be happening with the planets over the next four billion years, before the Sun swallows us and them?
8/8 • The Planets • 2004 • Astronomy
Our universe is prone to increasing disorder and chaos. So how did it generate the extreme complexity we see in life? Actually, the laws of physics themselves may demand it.
PBS Space Time • 2018 • Astronomy
