Radio telescope
hideA radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the radio frequency portion of the electromagnetic spectrum where they can detect and collect data on radio sources. Radio telescopes are typically large parabolic ("dish") antenna used singularly or in an array. Radio observatories are located far from major centers of population in order to avoid electromagnetic interference (EMI) from radio, TV, radar, and other EMI emitting devices. This is similar to the locating of optical telescopes to avoid light pollution, with the difference being that radio observatories will be placed in valleys to further shield them from EMI as opposed to clear air mountain tops for optical observatories.
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News tagged with radio telescopes
Close-up movie shows hidden details in the birth of super-suns (w/ Video)
Nov 16, 2009 |
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(PhysOrg.com) -- The constellation of Orion is a hotbed of massive star formation, most prominently in the Great Nebula that sits in Orion's sword. The glowing gas of the Nebula is powered by a group of young ...
ET: Check your voicemail
Space & Earth / Space Exploration
Nov 24, 2009 |
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(PhysOrg.com) -- Alien beings on faraway planets may not have noticed, but it’s been 35 years since human beings made the first deliberate effort to send them a message.
Record-Breaking Radio Astronomy Project to Measure Sky with Extreme Precision
Nov 16, 2009 |
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(PhysOrg.com) -- Astronomers will tie together the largest collection of the world's radio telescopes ever assembled to work as a single observing tool in a project aimed at improving the precision of the ...
Search results for radio telescopes
Scientists observe super-massive black holes using Keck Observatory in Hawaii
Dec 10, 2009 |
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An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings ...
Visual assistance for cosmic blind spots
Nov 23, 2009 |
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A bit of imagination on the part of a measuring instrument wouldn't be a bad thing. It could help to add data from areas where the instrument is unable to measure. However, it must do so constructively. In ...
List of search results for radio telescopes
