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2:01
Stephen Hawking explains that he believes we’ll encounter aliens in our lifetime.
2:16
Stephen Hawking makes a viral appearance in Times Square.
3:01
The volunteers are surprised by a DeLorean and demonstrate a time traveling experiment.
2:10
The volunteers set up the black hole challenge.
2:02
Using smartphones and tablets to measure how far apart the Milky Way is from Andromeda.
2:11
Demonstration finding the distance between the moon and the Earth.
0:50
The Earth rotates, and where you are changes how you see the universe.
2:32
Humans are made of tiny machines, which must all work together to thrive.
2:46
An experiment with magnets demonstrates how energy allows atoms to be created.
1:58
Molecules adapt to survive their environment and are passed on to the next generation.
3:16
Hubble’s theory explored with a Doppler effect drag racing challenge.
5:24
A hockey team demonstrates how galaxies expand, with some unusual equipment.
