Astronomy Theories

This video segment from Swift: Eyes through Time deals with the advancement of science through changing existing ideas, refuting outdated theories, and incorporating new findings.

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Beyond Einstein

NASA scientists describe some of the ways current science is addressing several of Einstein's fundamental questions and theories in this video adapted from NASA.

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Clean Coal?

Explore the challenges facing the deployment of clean coal technology in this video segment adapted from FRONTLINE: "Heat."

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CO₂ Concentrations at Mauna Loa Observatory, Hawaiʻi

This resource, adapted from the Carbon Dioxide Information Analysis Center, provides a graph of monthly average carbon dioxide (CO₂) concentration from 1958 to 2000 at the Mauna Loa Observatory in Hawaiʻi.

Colliding Neutron Stars Create Black Hole and Gamma-ray Burst

This video from NASA describes the detailed computer modeling used to predict that colliding neutron stars can produce gamma-ray bursts similar to those associated with black holes.

Converting to Biodiesel

Meet a college student whose class project to turn cooking grease into diesel fuel resulted in converting bus fleets to biodiesel, in this video from Earth Island Institute's New Leaders Initiative.

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Cooking Cookies with Solar Power

In this video segment adapted from ZOOM, two solar cookers are tested against a control to see which can cook a "s'more" faster.

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Cosmic Origin Spectrograph

This video from NASA features the Cosmic Origin Spectrograph (COS), which allows scientists to use spectrographic analysis to assess the composition of intergalactic material.

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Designing Future Cities: Alternative Energy

In this video segment adapted from ZOOM, visit a class as they design a city of the future that will use solar, wind, and water power to fuel its economy.

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Dust-Proofing a Mars Rover

Enter the lab of NASA scientist Dr. Carlos Calle to see how systems are being developed to keep planetary rover solar panels dust-free, in this video from NASA EDGE.

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Electricity

This video segment from IdahoPTV's D4K explains some electrical vocabulary and follows the route of electricity from its generation to the home.

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Energy in a Roller Coaster Ride

See potential energy convert to kinetic energy in this interactive activity from WGBH that shows a roller coaster in action.

Engineering Biofuels

In this video segment adapted from KQED's QUEST, find out how synthetic biologists use the techniques of metabolic engineering and directed evolution to make more effective biofuels.

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Ethanol Biofuel

In this video segment adapted from NOVA, learn about one scientist's idea for using biotechnology to make ethanol a more efficient alternative to gasoline.

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Eve: Extreme Ultraviolet Variability Experiment

In this NASA video, scientists describe how the Extreme Ultraviolet Variability Experiment will sample and track the Sun's ultraviolet irradiance, providing a detailed time sequence of extreme ultraviolet output -- data that can provide advance warning for potentially disruptive energy bursts.

Fracking

In this video segment adapted from Need to Know, learn about the controversial method of extracting natural gas known as hydraulic fracturing, or fracking, and how some residents who live near drill sites are concerned that it's polluting their water.

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Franklin Chang-Díaz: Rocket Scientist

This video segment adapted from NOVA scienceNOW profiles Franklin Chang-Díaz, a scientist who is working on plasma-powered rockets and was NASA's first Latin American astronaut.

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Fusion Energy Advances

In this report from the NewsHour, correspondent Spencer Michels reports on ongoing efforts to produce fusion energy to help fuel American energy independence.

Fusion: The Hydrogen Bomb

Just after World War II, nuclear scientists turned their attention from fission to fusion. This video segment adapted from AMERICAN EXPERIENCE looks at the beginnings of thermonuclear power generation.

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Gamma-ray Burst Theories

This video segment from Swift: Eyes through Time introduces and explains theories of the origin of gamma-ray bursts.

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