WGBH

In early January 2004, two spacecraft carrying identical robotic explorers will touch down on the surface of Mars. On that day, NOVA will present a special television event that climaxes with live coverage as NASA/JPL scientists await the first critical signals confirming that the rovers have landed safely. The show features a gripping behind-the-scenes glimpse of the design, testing, and launch of the mission. The engineers face a tense deadline...

Host Neil deGrasse Tyson will tackle one of science's major challenges in each video, framed as a simple question that ordinary people wonder and worry about. Neil will guide us as he explores dramatic discoveries and the frontiers of research that connect each central, provocative mystery. Episode includes: 1) Can My Car Live Forever? - Irv Gordon has driven his 1966 Volvo more than 2.7 million miles. But don't ask if you can drive it yourself....

Host Neil deGrasse Tyson will tackle one of science's major challenges in each video, framed as a simple question that ordinary people wonder and worry about. Neil will guide us as he explores dramatic discoveries and the frontiers of research that connect each central, provocative mystery. Episode includes: 1) Space Dangers - Can we protect Mars-bound astronauts from deadly meteroids and the ill effects of radiation and zero gravity? 2) Next-Generation...

Based on the Molly of Denali TV show now on PBS KIDS, Molly of Denali: Little Dog Lost is a Level One I Can Read! When Anka, Tooey's new sled dog, goes missing, what can Molly and Tooey do to make sure the lost dog finds her way home? Produced by WGBH Boston, Molly of Denali is an action-adventure comedy that follows the adventures of feisty and resourceful 10-year-old Molly Mabray, an Alaska Native girl. Molly helps her mom and dad run the Denali...

Based on the Molly of Denali TV show now on PBS KIDS, Molly of Denali: Crane Song is a Level One I Can Read! In Crane Song, Molly can't wait to help her scientist friends study baby cranes. They head out into the wilderness to put bands on the baby cranes' legs, so they can keep track of where the cranes go. But every time they get close, the baby cranes get scared away. Molly makes an emergency call to Grandpa Nat to come up with a solution! Produced...

What killed the mammoths? Near the end of the last ice age 13,000 years ago, these mighty beasts disappeared from North America together with some 35 other groups of mammals. For four decades, debate has raged over the cause of their abrupt demise. NOVA presents an in-depth investigation of a controversial new hypothesis which suggests that a massive impact from space could be the culprit, and also explores alternate theories.

When a blizzard damages the school roof, Molly knows just how to pull the community together to fix it -- a winter carnival and snow maze.

A documentary film from the television series "American Experience," that profiles Theodore Roosevelt, the twenty-sixth President of the United States, and discusses pivotal moments in his public and private life during his terms in office.

Documents the great "Spanish" influenza outbreak in the United States at the end of World War I, presenting the greatest American health crisis to date.

In Victorian England, a young orphan fights against those trying to abuse the poor.