A scientific inquiry into what causes obesity. Includes research surrounding a chemical in the brain proven to regulate body weight. [12:20]

This video by NOVA extensively covers Hurricane Katrina's effect on New Orleans in August of 2005. [53:28]

The genius of Newton is detailed in this video by NOVA. Articles, interviews, and translations of his work are posted here. [52:32]

This video is a NOVA documentary about the Parthenon; it answers many questions about how it was designed and engineered. It explains why the Parthenon is considered the physical embodiment of Greek society in the Age of Pericles and...

Investigate with the Car Talk radio hosts to learn more about newer, fuel-efficient cars. Join in on their analysis of what it will take to make our vehicles energy-efficient, and to secure a sustainable future for our environment. The...

Does a supermassive black hole lurk at the center of our galaxy? Watch this 7-oart Nova video to learn more.

Found high atop the Andes Mountains, Machu Picchu is arguably one of the most famous constructions of the Inca Empire. PBS NOVA reports on the remarkable estate of Pachacuti.

Pluto not a planet! This statement, made by Neil deGrasse Tyson, Director of the American Museum of Natural History's Hayden Planetarium, caused a furor with elementary students across the country. After 10 years, Tyson, travels across...

Investigate the history of military medicine from the Civil War to the Iraq War, and interpret archival photographs shot on and off the battlefield.

This impressive multimedia website about the space shuttle Columbia disaster explores rescue options, includes interviews with investigating scientists, and debate about continuing the shuttle program. Make sure to try out the "Force of...

Learn how scientists detect life on other planets, then test yourself to see if you can do it. A teachers' link at the top leads you to ideas for discussion and investigation. (Note: Some videos may no longer load.)

Cracking the Maya Code traces the work of scholars, over 200 years, as they attempt to decipher the Maya hieroglyphics. [54:00]

Explores what is known about the "Land of the Four Quarters" and the achievements of the Inca empire, their religious rituals, high altitude archaeology, and burial artifacts.

PBS offers a rare opportunity to explore the glaciers on France's Mt. Blanc in this engaging interactive site. Fun activities for students include following the process a snowflake takes to become a glacier.

Learn about the formation of elements from this video by NOVA and how these elements were incorporated into Earth when it formed. Closed caption available. [2:27]

Learn about the causes of landslides by watching footage of landslides, including the deadly Oso, Washington landslide in 2014. Closed caption available. [4:37]

The use of technology can save lives by predicting landslides to ensure timely evacuations. Watch how the Interferometric Synthetic Aperture Radar predicted the collapse of the Swiss mountainside. Closed caption is available. [3:43]

Watch how warming oceans and melting glaciers lead to the growing prevalence of typhoon-related storms. Specifically, this video focuses on Super Typhoon Haiyan that hit the Phillipenes in 2013. Closed caption is available. [4:13]

It is a scary feeling to hear the tornado sirens go off! However, we should be thankful we have to technology to warn people of impending tornadoes. We can thank science for that! Learn how scientists have predicted tornadoes with better...

Slice open a rock and look at it under a microscope and you will see are a rainbow of colors which are minerals. Minerals are made up of elements essential to modern life. Watch this video to see the mineral composition of rocks and the...

Travel along on the research vessel Polarstern to learn about the Arctic ecosystem. Scientists will describe the relationship between annual variations in sea ice and the krill population which is fundamental to the Antarctic food web....

Here is a list of the provisions carried in the ships Erebus and Terror for the Franklin Expedition. A brief commentary puts the amount of provisions in context.

This website matches up contemporary reports and later historical information about Jamestown with recent archaeological evidence that confirms such information.

It is reported that the U.S. experiences three quarters of the worlds tornados. Learn what conditions make the great place a breeding ground for these disasters. Interviews with experts and interactive features can be found in this...