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The data also provide new insights into the processes which shape the ionosphere around Venus and the rate of loss of atoms from the upper atmosphere.
It has been known for a long time that tenuous solar wind has two competing effects on the night-side ionosphere. The ionosphere above the terminator becomes higher, enabling plasma to pass more easily from the day side to the night side, and the lack of magnetic fields tends to enlarge the size of the night-side ionosphere. On the other hand, the weaker pressure may cause lower flow speeds of this plasma. The new Venus Express data show conclusively that the first effect outweighs the second, enabling the ionosphere to expand in the planet's wake. The results also show that erosion of the planet's upper atmosphere by the solar wind ceases when the wind nearly disappears, but may be enhanced in the aftermath of such a period.
A large "bubble" of slow-moving ions is formed behind the planet and when pressure increases again this bubble will partly be lost into space, temporarily accelerating the rate of erosion again. Venus found to have aurora type magnetotails.
It flew by Venus as planned at For the first time, scientists are able to investigate from the top of its atmosphere, down nearly to the surface. They have shown it to be a planet of surprises that Fifty years ago on Christmas Eve, a tumultuous year of assassinations, riots and war drew to a close in heroic and hopeful fashion with the three Apollo 8 astronauts reading from the Book of Genesis on live TV as they orbited The newly identified quasar, designated VHS J, is the brightest object A relic cloud of gas, orphaned after the Big Bang, has been discovered in the distant universe by astronomers using the world's most powerful optical telescope, the W.
Keck Observatory on Maunakea, Hawaii. In their search for life in solar systems near and far, researchers have often accepted the presence of oxygen in a planet's atmosphere as the surest sign that life may be present there. Serena pounded 10 aces to just one for Venus, the No.
Serena had an easier time in the first two rounds, though that was expected to change Friday under the lights in Arthur Ashe Stadium. But there was no beating Serena on this night, and the discouraged look on Venus' face across much of the match indicated she seemed to realize it.
It looked as if Serena could have trouble when, in the second game of the match, her right ankle turned awkwardly when Venus hit behind her on a shot. Serena stood near the baseline with her back to the court for a few seconds, then motioned to the chair umpire that she wanted to the see the trainer at the next changeover.
Serena had the ankle treated with a lead then broke in the next game, helped when Venus missed an easy swinging volley wide. Serena would break again for a lead then pound two aces in the next service game to wrap up the first set in 31 minutes. To help make this website better, to improve and personalize your experience and for advertising purposes, are you happy to accept cookies and other technologies?
Serena equals most lopsided win against Venus d.
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Monday arrived and with it a return to the lecture hall. With her new image, it is hard not draw attention from her colleagues. That and a lot of questions. Then the FBI arrives with questions of its own.
Venus has to be creative to handle it all. Read more Read less. Books In This Series 6 Books.
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