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Topic: Observing

Change grade range

Resource	Grade Level	Media Type
Astronomical Images in Different Wavelengths Visible light is just one portion of the electromagnetic spectrum that a telescope may detect. This collection of images produced for Teachers' Domain features radio wave, infrared, visible light, and X-ray images of distant stars and galaxies as well as images of the telescopes designed to detect the various wavelengths of radiation.	6-12	Flash Interactive
The Beginnings of the Telescope This animated essay from the NOVA Web site examines the design of Galileo's refracting telescope and Sir Isaac Newton's reflecting telescope.	6-12	HTML Document
Birth of a Supernova, Type Ia In this interactive activity from NOVA Online, learn about a type of exploding star — a Type Ia supernova — that is so bright that astronomers can measure the distance to the galaxy in which it resides, and even learn which elements make up the star.	6-12	Flash Interactive
Birth of a Supernova, Type II In this interactive activity from NOVA Online, learn about a type of exploding star — a Type II supernova — that is so large it has a mass 10 times greater than the mass of our Sun.	6-12	Flash Interactive
Evidence for the Big Bang Theory This video segment adapted from NOVA tells the story of two scientists who inadvertently discovered microwave radiation that is now believed to be heat left over from the Big Bang.	9-12	QuickTime Video
Galileo: Discovering Jupiter's Moons This video segment adapted from NOVA shows how Galileo, using his newly developed refracting telescope, observed four of Jupiter's moons, the first astronomical bodies to be discovered since ancient times.	3-12	QuickTime Video
Galileo's Big Mistake Scientists don't always get it right. This video segment adapted from NOVA looks at Galileo's failed theory for the motion of the tides.	6-12	QuickTime Video
Galileo: Sun-Centered System In the early 1600s, most people believed that the Sun revolved around a stationary Earth. This video segment adapted from NOVA tells how Galileo proved that the Sun, not Earth, is at the center of our universe.	3-12	QuickTime Video
Galileo: Sunspots This video segment adapted from NOVA shows how Galileo used his telescope to carefully observe and study sunspots.	3-12	QuickTime Video
How Big Is Our Universe? This interactive resource from Harvard Smithsonian Center for Astrophysics uses images and activities to understand the scope and scale of our universe. Featured are technologies used by generations of explorers.	3-12	HTML Interactive
Hubble Telescope: Looking Deep This video segment adapted from the Space Telescope Science Institute shows what the Hubble telescope found when it stared at a single, nearly empty spot in the sky for 10 days in 1995. The unexpected result was a picture of a multitude of galaxies stretching into the distance.	6-12	QuickTime Video
Infrared Gallery How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.	3-12	Flash Interactive
Infrared Search for Origins This interactive resource from NASA illustrates how infrared technology has advanced space exploration and can offer insight into questions about star formation, planetary systems, brown dwarfs, and the origins of the universe.	6-12	Flash Interactive
Jupiter: Earth's Shield Jupiter's immense gravity protects Earth from asteroids. In this video segment adapted from NOVA, scientists searching for signs of life in the universe identify solar systems with Jupiter-like planets that may be shielding smaller nearby Earth-like planets from comets and asteroids.	6-12	QuickTime Video
Robotic Exploration of Space Timeline This interactive timeline from NASA journeys through the last century, detailing key discoveries, experiments, missions, and other events that brought robotic space exploration from science fiction to reality.	9-12	Flash Interactive
The Search for Another Earth This NASA video provides an overview of technology under development to explore the planets and stars outside our solar system. These will be the most sensitive instruments built to date.	3-12	Unknown
Solar Magnetism This video segment adapted from NOVA describes how the Sun's magnetism can have an effect here on Earth, from dramatic auroras to a mini-Ice Age in the 1600s.	6-12	QuickTime Video
Spin a Spiral Galaxy This interactive activity from NOVA Online lets you spin a spiral galaxy, including our own Milky Way. It demonstrates that what you can learn from visible light observations of a galaxy is largely determined by the angle from which you are observing it.	6-12	QuickTime Interactive
Stellar Velocity: The Doppler Effect This interactive activity from the NOVA Web site illustrates the Doppler effect and shows how it applies to measuring the direction and speed of stellar objects.	6-12	Flash Interactive
A Strange New Planet This video segment adapted from NOVA features the first planet to be discovered outside our solar system. Its surprisingly large size and short orbit sent scientists back to their data and led them to discover similar planets.	6-12	QuickTime Video
WMAP: "Baby Picture" of the Universe View the Wilkinson Microwave Anisotropy Probe (WMAP) image from NASA to see the first detailed map of the oldest light in the universe, from 379,000 years after the Big Bang, over 13 billion years ago. A second image offers a visual timeline to put the WMAP image in perspective.	9-12	JPEG Image