On alien planets, they rain from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in pristine lakes of methane. They can cover entire planets in mi

Outer space is already an essential part of America\’s ability to fight wars. Our military depends on satellites for many things, such as communications, reconnaissance and targeting information. But

They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They\’re unique, because in clusters, all the stars were born at about the same time, from

Experts cook up ways you could destroy the Earth, including swallowing it with a black hole, blowing it up with anti-matter, hurling it into the Sun, and switching off gravity.

They are breathtaking, lethal and a constant source of surprise. The stunning rings of Saturn have mesmerized countless scientists over the centuries. With particles the size of a house shooting at 53

The Universe is full of explosions that both create and destroy. The Chicxulub impact on the Yucatan peninsula, which may have wiped out the dinosaurs 65 million years ago, was two million times more

Every year, thousands of objects both natural and manmade plummet through our atmosphere and crash into the Earth. These menacing messengers from the sky provide scientists with amazing insights into

A look at what the Earth would be like if the moon did not exist. Includes the changes of the oceans and shifting currents, unusual weather patterns, and the changes which would occur between day and

Death stars explode into supernovae while they are on the last stage of life. Sometimes, they reveal the biggest blare in the universe which is called gamma ray burst; the destructive ends of death st

Season 3, Episode 12