Mission to the Planets - The illustrated story of man's by Patrick Moore PDF

By Patrick Moore

ISBN-10: 0393028720

ISBN-13: 9780393028720

This ebook presents a checklist of the trips of spacecraft to the entire planets within the sunlight process. This variation has been up-to-date with images from the repaired Hubble telescope. The planets (except the remotest, Pluto) have all been studied at shut diversity. tv astronomer Patrick Moore presents commentaries at the missions correct from the very begin of the distance age, and brings jointly dramatic perspectives of those far-off worlds, chosen from American and Russian resources. This e-book additionally offers info at the astronauts and technicians concerned and provides glimpses of the intense stipulations discovered on those worlds in outer area.

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Extra resources for Mission to the Planets - The illustrated story of man's exploration of the solar system

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Mercury and the Earth are the densest of all the planets, and each 'weighs' about 5'/2 times as much as an equal volume of water would do. it has been worked out that Mercury has a dense, iron-rich core about 2,250 miles (3,600 km) in diameter, larger than its of heavily cratered MARINERTO MERCURY the whole body of the Moon and containing around 80 per cent of Mer- cury's mass. The was confirmed, and was found that the rotational axis is almost perpendicular to the orbital plane. Mercury, unlike Venus, spins in the same direction as the Earth, so that to an observer on the surface the Sun would rise in an eastward direction and set toward the west.

They are of two sorts; some are deepseated, 370 to 500 miles (600 to 800 km) below the surface, while others are shallow. Of course, all moonquakes are very mild compared with the shocks felt on Earth, but they do occur, and many have been recorded by the seismometers left on the surface by the Apollo astronauts. There have also been impact records, and it seems that a meteorite which hit the Moon on 17 July 1972 was at least a ton in weight. After the last astronauts left, many of the recording stations were still in working order, and continued to send back data until September 1977, 5* /f i .

However, there was one prominent patch which looked like an immense crater. It was named Tsiolkovskii, in honour of the Russian rocket pioneer who had died in 1934, and later proved to be unique; it has a dark lava-coated floor and a high central peak, so that it seems to be something of a link between a small mare and a large crater. Several ray-craters were visible, together with a long bright streak which the Russians took to be a range of mountains; later it became clear that the feature was simply a bright ray, so that the 'Soviet Mountains' were tactfully deleted from the maps.

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Mission to the Planets - The illustrated story of man's exploration of the solar system by Patrick Moore


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