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Earth
 Websites presented in alphabetical order About Foucault Pendulums and How They Prove the Earth Rotates! 
 This youth-friendly, tutorial-designed site introduces readers to the background and scientific utility of the Foucault Pendulum and provides information about its inventor, French physicist Jean Bernard Leon Foucault. The site map on the main page provides a convenient index for specific topics. From the California Academy of Sciences. http://www.calacademy.org/products/pendulum/ Topics: Astronomy, Physics Last updated Dec 17, 2003 Asteroid 4179 Toutatis
Background information, images, and data on the asteroid whose September 29, 2004, approach to Earth "is the closest in this century of any known asteroid at least as large as Toutatis." Provides radar images and an animation of a model of the asteroid's rotation. Also includes a link to a list of other close approaches of objects to Earth. From the Jet Propulsion Laboratory (JPL) at the California Institute of Technology. http://echo.jpl.nasa.gov/asteroids/4179_Toutatis/toutatis.html Topics: Astronomy Last updated Jul 20, 2006 Asteroid and Comet Impact Hazards
This site is devoted to current news and information about the possibility of asteroids and comets hitting the Earth. Listings of Near Earth Objects (NEO) are given. Several scientific reports are posted. Artistic renderings of past and future object impacts on the Earth are available. An informative "FAQ on Asteroid and Comet Impacts" puts the current media fascination with this topic into perspective. A fascinating and informative look into the "what if." Produced by the NASA Ames Space Science Division. http://impact.arc.nasa.gov/ Topics: Astronomy Last updated Nov 2, 2002 Earth and Moon Viewer
View either a map of the Earth showing the day and night regions at this moment or view the Earth from the Sun, the Moon, the night side of the Earth, above any location on the planet specified by latitude, longitude, and altitude, from a satellite in Earth orbit, or above cities around the globe. Also shows the Moon from Sun, Earth, night side, above formations on the Moon, and as a map. http://www.fourmilab.ch/earthview/ Topics: Astronomy, Maps by Place, Photograph Collections, Scientific Themes Last updated Jan 11, 2007 Earth Guide
This interactive site for children answers questions in eight areas related to the earth: the earth in the Milky Way, how the earth is different from other planets, the difference between the sky and space, sunlight, the water and carbon cycles, substances on earth, types of land areas, and the size of oceans. In English and Japanese. From the Japan Science and Technology Agency. http://jvsc.jst.go.jp/earth/guide/english/ Topics: Astronomy Last updated May 29, 2007 Earth Impacts Effect Program
"This program will estimate the seismic, blast wave, and thermal effects of an impact as well as the size of the crater produced by the impact" of a meteorite or comet striking the earth. Select the inputs, and the site will calculate the results of the impact. Includes a explanation of results. From scientists at the University of Arizona's Lunar and Planetary Laboratory. Note: "These results come with absolutely no warranty." http://www.lpl.arizona.edu/impacteffects/ Topics: Astronomy Last updated Apr 26, 2004 The Encyclopedia of Arda: An Interactive Guide to the Works of J.R.R. Tolkien
This "completely unofficial site" from a Tolkien enthusiast attempts to be an encyclopedia of the world of "The Hobbit," "The Lord of the Rings," and other works. Includes brief information about races, places, animals and plants, songs, and much more. Also find maps and illustrations, a Chronicle of Arda ("the World and all that is in it"), a dictionary of old and rare words, calendars, and related links. http://www.glyphweb.com/arda/ Topics: Astronomy, Literary Movements and Periods, Literature & Books, Literature by Place, Mysteries and More Last updated Aug 25, 2004 The Gateway to Astronaut Photography of Earth
A searchable and browsable collection of over 450,000 photographs of earth taken from space beginning in 1961. Browsable through a clickable map. May be searched by multiple criteria including mission, geographic region, latitude, longitude, camera tilt, and camera and film type. Features a cities collection, mission highlights, and the Space Shuttle "Earth from Space" collection. From Earth Sciences and Image Analysis, NASA (National Aeronautics and Space Administration)-Johnson Space Center. http://eol.jsc.nasa.gov/sseop/clickmap/ Topics: Astronomy, Photograph Collections Last updated Dec 19, 2004 Near-Earth Asteroid Tracking
Observation reports, photos, and movies of asteroids and comets from the Near-Earth Asteroid Tracking (NEAT) observing systems at Palomar Observatory and the Maui Space Surveillance Site. Includes a listing of newly discovered asteroids, an asteroid and comet FAQ, image archives, and information about NEAT observation telescopes. NEAT is a joint project of the NASA's Jet Propulsion Laboratory and the United States Air Force. http://neat.jpl.nasa.gov/ Topics: Astronomy, Photograph Collections Last updated Apr 8, 2005 Our Earth as Art
Landsat 7 is a U.S. satellite maintained by NASA. On this site "you can view our planet through the beautiful images taken by the Landsat-7 satellite." The online exhibit includes images of deserts, rivers, mountains, and other geographic features. Includes a discussion of how the colors of satellite images differ from photographs. Browsable by continent. From the U.S. Geological Survey (USGS) and NASA. http://landsat.gsfc.nasa.gov/earthasart/ Topics: Astronomy, Electrical Energy, Photograph Collections, Technology Last updated Jun 18, 2003 Terra: The EOS Flagship
The site describes Terra, NASA's Earth Observing System (EOS) flagship satellite, and its mission "to improve understanding of the movements of carbon and energy throughout Earth’s climate system." The site features history of the project and spacecraft, global maps, images and data from Terra, and mission status updates. "Terra is a multi-national, multi-disciplinary mission involving partnerships with the aerospace agencies of Canada and Japan." http://terra.nasa.gov/ Topics: Astronomy, Geography, Regions of the World Last updated Feb 7, 2005 Third From the Sun: Geographical Features as Seen From Space
Designed for students in grades 4 through 8, this site provides an overview "of the history and development of Earth sensing, " and the role of the Landsat satellite in modern Earth imaging. Includes interactive activity for students "to make reasoned inferences about the geographic locations shown in Landsat images." Also features information for teachers. From the Center for Science Education, Space Sciences Laboratory, University of California, Berkeley. http://cse.ssl.berkeley.edu/SegwayEd/lessons/third_from_sun/ Topics: Astronomy, California: Education, Geography, Photograph Collections Last updated Aug 22, 2006 Visible Earth
"A searchable directory of images, visualizations, and animations of the Earth." Browsable by subject, satellite/sensor, and location. From the National Aeronautics and Space Administration (NASA). http://www.visibleearth.nasa.gov/ Topics: Astronomy, Photograph Collections Last updated Nov 27, 2004 |
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