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Displaying 1—10 of 1000 matches for query "20._Why_does_a_comet's_tail_split_in_two" retrieved in 0.025 sec with these stats:
- "20" found 34824 times in 13630 documents
- "whi" found 1970 times in 699 documents
- "doe" found 1502 times in 887 documents
- "a" found 169938 times in 18149 documents
- "comet" found 1833 times in 609 documents
- "s" found 98382 times in 15118 documents
- "tail" found 509 times in 296 documents
- "split" found 153 times in 128 documents
- "in" found 179422 times in 17737 documents
- "two" found 15295 times in 6880 documents
Usually there are two tails: one is made of gas, and the other made of grains of dust. These two tails extend in slightly different directions, thus causing the split appearance.
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Answer provided by Alan Hale ... %20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - ASTEROIDS, COMETS, AND METEORS
In July 2005, a portion of the Deep Impact spacecraft actually collided with a comet—a planned collision. The rest of the spacecraft passed a few miles away from the comet's nucleus.
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Answer provided by Alan ... %20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - ASTEROIDS, COMETS, AND METEORS
... sixties this activity increased tenfold with the inception of the Alouette / ISIS satellite missions in 1962, and a vigorous rocket program conducted at Fort Churchill and elsewhere. After the last Defence Research ... successful missions. Long overdue, the Canadian Space Agency was established in 1989 and is now leading a more mature program including Canada's first scientific mission since ISIS-II (SCISAT-1), the Earth ...
... WHAT'S GOING ON IN SPACE'''
by Holmes, D. G.
''New York, 1958: Funk and Wagnalls Co., 256 pages, OP''
This book offers a broad-brush account of space programs and progress, as seen by a ... from the 1962 Publication ''Annotated Bibliography of Space Science and Technology with an Astronomical Supplement - A History of Astronautical Book Literature 1931 - 1961.'' by Frederick I. Ordway III
Category:Annotated Bibliography ...
... brown areas. As you come closer, to about the distance of the Moon, only then does the brown begin to be noticeable. This is amazing when you think about it because ...
With current rocket engines and spacecraft technology, it does take a long time to travel anywhere in space. A trip to Mars will take upward of nine months and the other planets will take ... planet, which acts like a slingshot effect. This is possible when a spacecraft flies close enough to a planet that it is able to 'steal' a little of the planet's orbital velocity. Of course ...
... determined by the wavelengths the Earth's atmosphere filters out. All energy travels in waves, much like ocean waves. Light is a form of energy and also travels in waves. The different wavelengths of ... , as a result, only the longer wavelengths (toward the red end of the spectrum) get through the atmosphere. By contrast, light from objects that are higher up in the sky does not have ... . The colors of the Moon as seen from the Earth's surface are also determined by the dust or moisture found in the atmosphere. Dust also absorbs the shorter (blue) wavelengths of ...
... formed it was a swirling mass of material which became the Sun and planets. The planets continue to rotate around the Sun, because there is nothing to stop them. In addition, each ... once, thus giving us our night and day. When the astronauts went to the Moon in 1969, it took them three days to get there, so they could see the Earth ...
Earth has gravity because it has mass. Space is a void and therefore has no mass, so it cannot have gravity. As long has Earth ... gravity. If Earth were to lose its mass, it would cease to exist, so there's really no way that Earth can ever lose its gravity.
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Answer provided by Dana S. Klein & D. Brooke Owens
Image:K2S logosmall.jpg Question and Answer extracted from the book ...
... so much because it's very hard. It takes a huge amount of effort to design, build, test and operate spacecraft. Most of this has to do with Earth's gravity. Other factors, such as insurance and permit/licensing costs add a lot to the price as well.
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Answer provided by ...
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