

Cosmic Journeys
The Most Powerful Objects in the Universe
TV-PG
S1 • E20 Sep 22, 2012 24mWhat are the energy extremes that define our universe? And how much power can the cosmos wield? Climb a ladder of increasingly powerful events, from frigid gas clouds to nuclear explosions, and travel out to the seething environments of black holes. Find out where Earth fits in the vast power scales of the cosmos.