Word: rovers
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...seem to bother him on the second moon walk, when the astronauts took more core samples, picked up rocks, and pushed over a large boulder to collect soil from underneath it (so scientists can compare the effects of cosmic-ray bombardment on varying soil samples). They drove the rover several hundred feet up Stone Mountain and, after parking it on what they thought was a dangerously steep slope, they simply picked it up and put it down in a more secure spot...
...consumed in the delayed landing, they decided that another excursion was possible, and the astronauts prepared to take a final spin on the lunar surface. It would take them north toward Smoky Mountain. Then, after stowing their rocks, film and other paraphernalia in the lunar module and positioning the rover's camera to televise the liftoff, Duke and Young were to fire Orion's upper stage engine and head for a reunion with Mattingly, orbiting overhead in Casper. Later, Casper's own powerful engine would be fired to hurl the command ship out of lunar orbit...
Unfolding Rover. Young and Duke are scheduled to begin their first EVA (extravehicular activity) on Thursday, April 20, at 7:19 p.m., E.S.T., some 31 hours after their landing on the moon. They are so confident of Apollo's systems that they will not bother to collect the familiar "contingency sample"-a few specimens of lunar rock quickly gathered by previous Apollo crews immediately upon emerging from the lunar module in event their mission had to be abruptly curtailed. Instead, Young and Duke will use the precious time to set up their equipment and experiments, unfold their car from...
...second and longer moon ride will begin Friday, April 21, at 5:44 p.m., E.S.T. Heading south, the astronauts will travel up to 21 miles from Orion -as far as they could walk if the rover broke down. Again, they will frequently stop along their winding path to pick up geological samples. Finally, after reaching the bottom slopes of 1,600-ft. Stone Mountain, they will return to Orion for the night...
...Duke will make their third and final lunar tour. The excursion will take them northward as far as a large feature called Smoky Mountain. Although this trip, too, will be largely devoted to geological investigation, it will also include another "Grand Prix" to discover any changes in the rover's performance after the three-day stay on the moon. Their lunar work done, Young and Duke will then pack up for the night. Next day they will lift off from the moon's surface, rendezvous with Mattingly aboard Casper and prepare for the long voyage home. Splashdown should...