Word: lunar
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...explore that river. Brother Jiri Kamel, a Moravian botanist at the Jesuits' College of Manila in the 17th century, gave Europe the camellia. A German mathematician and astronomer of the Society of Jesus, Christoph Klau, contributed to the Gregorian calendar and gave his Latinized name, Clavius, to a lunar crater that he discovered...
...astronauts and public alike, these prolonged earth-orbiting flights may seem less exciting than the Apollo lunar expeditions. But Skylab's mission will have far-reaching consequences. It will help determine if man can live and work in space for the extended periods of time necessary to make round trips to the other planets or moons. "On Apollo we were like Christopher Columbus going into the unknown," says former Apollo Director Rocco Petrone. "With Skylab, we are more like the Pilgrims trying to settle the New World...
WITH a thunderous roar, hundreds of tons of dirt and rock dropped from sight, tossing trees around like matchsticks and leaving the yawning, lunar-like crater shown above. Now, after investigating the massive cave-in, which occurred last December in central Alabama's Shelby County, the U.S. Geological Survey has identified the crater as a "sinkhole." It may be the largest yet (as much as 425 ft. across and 150 ft. deep) in a growing number of such cave-ins that have pockmarked central and northern Alabama in recent years. Sinkholes often occur when the roofs of underground limestone...
...Apollo 17 Astronaut Harrison Schmitt poked around a lunar crater last December, he suddenly shouted, "Hey, there is orange soil! It's all over!" Schmitt's excitement was shared by scientists back on earth. Because the soil looked remarkably fresh and the crater resembled volcanic vents on earth, they speculated that volcanic activity might well have occurred on the moon as recently as 200,000 or 300,000 years ago. That would have upset the widely held view that the moon has been largely dormant for more than 3 billion years. Said NASA Geochemist Robin Brett...
Last week the highly publicized orange soil produced some unexpected disappointment. Using "atomic clock" dating techniques. Dr. Oliver Schaeffer and his lunar-analysis team at the State University of New York at Stony Brook determined that the material was 3.71 billion years old, within the age range of other moon samples that have been brought back to earth. How could scientists have been so far off the mark in their first estimates? Conceding that it was all a "big surprise," Schaeffer theorized that the long-buried soil might have been dug up recently by a meteoroid impact, thus giving...