Inside Nuclear Reactors

Inside a Nuclear Reactor
W. Robert Moore / National Geographic / Getty Images

Hot Core in a Cold Place
A technician unseals a fuel vessel — where massive amounts of energy are generated — in Greenland's Camp Century reactor in 1962. Greenland is not nearly as rich in geothermal energy as its little neighbor Iceland is, and nuclear power helps fill some of the energy gap.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.