Just how big would an asteroid have to be to wipe out all of human life? We ask the experts to find out the impact that different sized objects would have on Earth.

Grounded in historical studies of asteroids from the nineteenth century, Asteroids is a fully up-to-date view of these remarkable objects. Without resorting to any technical diagrams or mathematics, Clifford J. Cunningham shows that asteroids are not just rocks in space, but key to understanding the life and death on Earth of both animals and humans. From space missions to the asteroids' starring role in literature and film, Cunningham precisely and...

Learn all about asteroids and meteoroids.

Kids will understand the differences between asteroids, comets and meteors, as well as comprehend the history and importance of our moon and our planet. The program begins with a simple definition. The term is repeated numerous times by the narrator and the text shown on-screen. This helps clarify pronunciation and provides opportunities to transfer words from working to long-term memory.

As an asteroid nears Earth, a man finds himself alone after his wife leaves in a panic. He decides to take a road trip to reunite with his high school sweetheart. Accompanying him is a neighbor who inadvertently puts a wrench in his plan.

Three episodes from the television series. In The Magic school bus Gets Lost in Space the students go on a planetarium field trip and are magically transported out of the earth's atmosphere into space where they visit each of the nine planets. In The Magic School Bus Out of This World they learn about gravity and meteors as an asteroid hurtles toward Earth. In the last episode, The Magic School Bus Taking Flight they learn about the basics of aerodynamics...

Combining lively studio discussion with exploratory films and on-the-spot reports, Dara O Briain's Science Club brings some of the world's foremost thinkers together to share their ideas. In this episode, Professor Steve Jones discusses early studies of the reproductive process. Comedian Ed Byrne discovers just how closely related he is to a Neanderthal. Materials scientist and engineer Mark Miodownik creates a DNA cocktail with the help of some vodka....

An asteroid is hurtling toward Earth. A big, bad one. Maybe not kill-all-the-dinosaurs bad, but at least kill-everyone-in-California-and-wipe-out-Japan-with-a-tsunami bad. Yuri, a physicist prodigy from Russia, has been recruited to aid NASA as they calculate a plan to avoid disaster. The good news is Yuri knows how to stop the asteroid--his research in antimatter will probably win him a Nobel prize if there's ever another Nobel prize awarded. But...

Set on the future earth. Johnny Rico is a young student dating a girl named Carmen. When Carmen decides she wants to become a citizen by joining the military, Johnny follows and joins as well. He soon realizes that he joined for the wrong reasons. Just as he is about to quit, an asteroid that originated from the orbit of planet Klendathu hits Buenos Aires and kills his family. From the bridge of the Fleet Battlestation Ticonderoga to the descolate...

The Sumatra-Andaman earthquake of 2004 is estimated to have released the energy of 23,000 atomic bombs, inundating coastal communities with tsunami waves up to 100 feet high. This program explains the undersea geologic forces that create tsunamis - and considers the possible consequences if a landslide-generated mega-tsunami were to strike the East Coast.