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Collection:
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NASA Astronomy Picture of the Day Collection
Collection
NASA Astronomy Picture of the Day Collection
Collection
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Title:
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Venus: Earth's Sister Planet
Title
Venus: Earth's Sister Planet
Title
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Explanation:
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This picture in visible light was taken by the Galileo [ http://nssdc.gsfc.n…] spacecraft. Venus [ http://seds.lpl.ari…] is very similar to Earth [ http://antwrp.gsfc.…] in size and mass - and so is sometimes referred to as Earth's sister planet - but Venus has a quite different climate. Venus' [ http://www.c3.lanl.…] thick clouds and closeness to the Sun [ http://antwrp.gsfc.…] (only Mercury [ http://antwrp.gsfc.…] is closer) make it the hottest planet - much hotter than the Earth. Humans could not survive there, and no life of any sort has ever been found. When Venus [ http://nssdc.gsfc.n…] is visible it is usually the brightest object in the sky after the Sun and the Moon. More than 20 spacecraft have visited Venus including Venera 9, which landed on the surface, and Magellan [ http://stardust.jpl…], which used radar to peer through the clouds and make a map of the surface. There are still many things about Venus's unusual atmosphere that astronomers don't understand. Tomorrow's picture: Uranus: The Tilted Planet
Explanation
This picture in visible light was taken by the Galileo [ http://nssdc.gsfc.n…] spacecraft. Venus [ http://seds.lpl.ari…] is very similar to Earth [ http://antwrp.gsfc.…] in size and mass - and so is sometimes referred to as Earth's sister planet - but Venus has a quite different climate. Venus' [ http://www.c3.lanl.…] thick clouds and closeness to the Sun [ http://antwrp.gsfc.…] (only Mercury [ http://antwrp.gsfc.…] is closer) make it the hottest planet - much hotter than the Earth. Humans could not survive there, and no life of any sort has ever been found. When Venus [ http://nssdc.gsfc.n…] is visible it is usually the brightest object in the sky after the Sun and the Moon. More than 20 spacecraft have visited Venus including Venera 9, which landed on the surface, and Magellan [ http://stardust.jpl…], which used radar to peer through the clouds and make a map of the surface. There are still many things about Venus's unusual atmosphere that astronomers don't understand. Tomorrow's picture: Uranus: The Tilted Planet Explanation
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Credit and Copyright:
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Credit_and_Copyright
Credit and Copyright
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Arizona
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Arizona
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Mercury
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Mercury
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Venus
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Venus
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Uranus
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Uranus
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Hamilton
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Hamilton
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Goddard Space Flight Center (GSFC)
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Goddard Space Flight Center (GSFC)
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Jet Propulsion Laboratory (JPL)
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Jet Propulsion Laboratory (JPL)
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Earth
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Earth
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Galileo
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Galileo
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Moon
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Moon
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Sun
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Sun
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Mercury
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Mercury
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Venus
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Venus
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Visible Light
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Visible Light
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Stardust
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Stardust
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Uranus
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Uranus
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Magellan
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Magellan
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Venera 9
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Venera 9
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original url:
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original_url
original url
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UID:
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SPD-APOD-ap950815
UID
SPD-APOD-ap950815
UID
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