... changes across seasons can be explained by the tilt of the Earth's rotation axis ... reveal the Sun's faint outer atmosphere called the corona...a mass of incandescent ... The Sun's thin, outer layers are called its atmosphere. ...
... The giant planet takes only about 10 hours to spin once -- a day less than half of our much smaller Earth's. This rapid spin plus heat rising from its interior create powerful and complex weather systems in Saturn'satmosphere. ...
... A speed of about 42,000 kilometers per hour will be enough to escape the Earth's gravity and, when added to the Earth's orbital speed around the Sun, put the spacecraft on a Hohmann transfer orbit to the Red Planet. ...
... Sun by almost the same amount as the Earth's, which gives Mars, like Earth, seasons ... the limited understanding of the Martian atmosphere and climate at the time, and the ...
... Furthermore, the planet'satmosphere is so thin that any liquid water would rapidly ... It was warmer and had a thicker atmosphere billions of years ago, but because of its ...
... proportionately more (3/4) of the planet's diameter than Earth's does (about half ... field, 100 times weaker than Earth's. Astronomers and geologists are still trying to ...
... The giant planet takes only about 10 hours to spin once--a day less than half of our much smaller Earth's. This rapid spin plus heat rising from its interior create powerful and complex weather systems in Saturn'satmosphere. ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/73/uitc073.pdf -- 959.9 Кб -- 02.10.2012 Похожие документы
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... is small enough that it doesn't stop convection from occurring in the atmosphere ... In so doing, it drags along the plates that form the Earth's surface. ... Ten percent of the Earth's heat escapes this way. ...