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Educational Resources for Astronomy 101

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Astronomy News

  • NASA delays Hubble Mission to May 2009

    The fallout from a major glitch with the Hubble Space Telescope has again delayed NASA's plans to send a space shuttle crew to overhaul the orbital observatory for the final time, with launch now set for no earlier than May 2009 due to problems with a spare part, the agency said late Thursday.
  • 2009: The International Year of Astronomy

    2009 has been designated the International Year of Astronomy by the United Nations General Assembly.

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Hubble directly observes Planet Orbiting Fomalhaut

Hubble directly observes Planet Orbiting Fomalhaut

This image, taken with the Advanced Camera for Surveys aboard NASA's Hubble Space Telescope, shows the newly discovered planet, Fomalhaut b, orbiting its parent star, Fomalhaut. The small white box at lower right pinpoints the planet's location. Fomalhaut b has carved a path along the inner edge of a vast, dusty debris ring encircling Fomalhaut that is 21.5 billion miles across. Fomalhaut b lies 1.8 billion miles inside the ring's inner edge and orbits 10.7 billion miles from its star. The inset at bottom right is a composite image showing the planet's position during Hubble observations taken in 2004 and 2006. Astronomers have calculated that Fomalhaut b completes an orbit around its parent star every 872 years. The white dot in the center of the image marks the star's location. The region around Fomalhaut's location is black because astronomers used the Advanced Camera's coronagraph to block out the star's bright glare so that the dim planet could be seen. Fomalhaut b is 1 billion times fainter than its star. The radial streaks are scattered starlight. The red dot at lower left is a background star. The Fomalhaut system is 25 light-years away in the constellation Piscis Australis. This false-color image was taken in October 2004 and July 2006.

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