Are we better off in the dark?
Most city dwellers are familiar with contaminated water and smoggy air -- but have you heard of light pollution? Listen in as Allison and Robert explore the effects of light pollution -- and whether h...
28 Tammi 201017min
Mining the Moon
Since helium-3 can be used to power the fusion reactors of the future, it may be one of the world's most important fuel sources. It's rare on Earth, but experts believe the moon may have an abundant s...
26 Tammi 201012min
How Exploding Lakes Work
During 1986, an unusual thing happened in Cameroon: Lake Nyos exploded, expelling a toxic cloud that killed roughly 1700 people. How could this happen? More importantly, could it happen again? Learn m...
21 Tammi 201013min
How Fighting Asteroids Works
Asteroid impacts are inevitable. As they hurtle toward Earth, experts race against the clock to build an effective asteroid deterrent. Will they succeed in time? Learn more about asteroid fighters -- ...
12 Tammi 201017min
Amazing Infestations!
From hordes of caterpillars in Liberia to the Australian mice plagues, infestations can occur in almost any part of the world. Join Robert and Allison as they explore some of the world's largest -- an...
12 Tammi 201024min
