Sharks are known to be sensitive to the electrical fields of magnets, but surprisingly, this non-magnetic rare earth metal repels them. NOVA is available to stream on pbs.org and the free PBS App, ...

The asteroid released the equivalent of 10-billion nuclear bombs worth of energy when it struck Earth. The impact started a chain of events that wiped out 75% of all plants and animals at the time.

On the day that NOVA's "Ultimate Mars Challenge" aired, I was invited to attend a modest little gathering held in its honor. It was one of those times when I realized that I was clearly the least ...

Before you submit an error, please consult our Video Help page. NOVA is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire ...

Join the hunt for the universe’s most common—yet most elusive and baffling—particle. Outnumbering atoms a billion to one, neutrinos are the universe’s most common yet most elusive and baffling ...