Word: moons
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Dates: during 1960-1969
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Still looking up, Surveyor later scored another space-age first, shooting 20 spectacular photographs of a solar eclipse that was unlike any ever before seen by man. Instead of being blotted out by the moon-as it is during solar eclipses seen on earth-the sun was temporarily hidden behind the earth. During the two hours that Surveyor was in the shadow cast by the eclipse, lunar midday temperatures plummeted from...
...orbiting space station. There was speculation that the second ship had a restartable engine that would push the joined ships as far out as 50,000 miles-a first step toward a flight later this year in which a manned Russian ship would circumnavigate the moon...
...name (it means "union") and its initial low and nearly circular orbit, which appeared to be designed to make Soyuz an easier rendezvous target. Also, the orbit's 51.5° inclination to the equator was close to the 51° parking-orbit inclination previously used by unmanned Russian moon probes...
...Surveyor 3 landed on the moon's Ocean of Storms some 4 billion years ago, it might have created an even bigger splash than it made last week. For early in lunar history, Nobel Laureate Harold Urey told the National Academy of Sciences last week, the moon may have had an atmosphere, rainfall, lakes and even oceans...
Urey suggests that lunar water had a terrestrial origin. If the moon was torn from the earth, he says, it would have carried off substantial amounts of water. Or if, as Urey believes, the moon was a planetary interloper captured by the earth, its gravity would have attracted terrestrial water as well as solid matter during the cataclysmic events caused by its close approach to the earth...