Word: crater
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Dates: during 1960-1969
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...still pictures shot by Surveyor during its first lunar day. One film strip showed the spacecraft's claw digging a small trench in the soil. Another, taken at sunset, followed the edge of lunar night as it swallowed Surveyor's lengthening shadow and moved on across the crater until only a few high clumps of rocklike material remained lighted against a black...
...Debris. Orbiter 4 was even more informative. Its overhead and closeup picture of the Humboldt Crater-located at the right edge of the visible face of the moon and difficult to see through terrestrial telescopes-suggested to Astrogeologist Harold Masursky that the crater is "very young" geologically and was probably created by the impact of a meteorite only a few million years ago. The event was so recent, Masursky believes, that the floor of Humboldt is still gradually rising. This "isostatic rebound," as he calls it, has produced an obvious fracture in the crater floor-evident for the first time...
...hill. She stopped long enough to record one particularly poignant sequence-a corpsman bending to help a wounded buddy, jerking upright in anguish when the man died, and plunging away, yelling "I'll kill them! I'll kill them!" At the summit she flopped into a bomb crater, kept on aiming her camera. At 22, Cathy is used to such scenes. She spends more time at the front-three weeks a month-than any other woman in the Saigon press corps. Despite her diminutive figure, she has a reputation as one of the most stubbornly persistent, bullheaded photographers...
...seekers, there is the Gyrotron, a $3,000,000 contraption that allows tourists to strap themselves into miniature rail cars and then be hurtled through a maze of environments that begins with a terrifyingly realistic "orbit" among the stars, careens on through the hellish jaws of a live volcano crater. On opening day, the mechanism broke down, stranding passengers in the volcano and providing Expo with its first mishap...
...three times (the first time 35 ft.) after its initial impact on the moon-lifted by its vernier rockets, which had failed to shut down. The unexpectedly rough landing occurred, scientists believed, when the approach radar that controls the rockets became confused by the difference in elevation between the crater bottom and its rim. But the rugged spacecraft quickly proved that it had not been unduly shaken up. Shortly after it landed, it looked down and coolly photographed a nearby "footprint" made on the last bounce by one of its own footpads...