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Space
23mins
"Could black holes be the key to a quantum theory of gravity, a deeper theory of how reality, of how space and time works? Well, I think so."
12mins
When black holes disappear, what happens to the stuff that fell in? Physicist Brian Cox explains.
5mins
NASA’s Michelle Thaller explains what happens when the densest stars in the galaxy collide.
3mins
Left–Right, Back–Forth, Up–Down. What’s the fourth dimension?
7mins
What astronaut Ron Garan saw in space changed his life forever – here’s what it taught him.
4mins
Rituals come as much from religion as they do from the way Earth spins around the Sun.
To understand the edges of our universe, we’ll need to explore the edges of our own philosophies.
John Templeton Foundation