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Topic: NASA’s Pioneer Venus

NASA prepares to study the Mysterious Arc of Venus during it’s Transit of the Sun June 5th

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – When Venus transits the sun on June 5th and 6th, an armada of spacecraft and ground-based telescopes will be on the lookout for something elusive and, until recently, unexpected: The Arc of Venus.

“I was flabbergasted when I first saw it during the 2004 transit,” recalls astronomy professor Jay Pasachoff of Williams College. “A bright, glowing rim appeared around the edge of Venus soon after it began to move into the sun.”

For a brief instant, the planet had turned into a “ring of fire.”

The Arc of Venus observed during the planet's 2004 transit by amateur astronomer André Rondi using a 10-cm refractor near Toulouse, France.

The Arc of Venus observed during the planet's 2004 transit by amateur astronomer André Rondi using a 10-cm refractor near Toulouse, France.

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