Word: halley
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Dates: during 1980-1989
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...mission carried a $100 million NASA satellite, the second in a series designed to fill the communications gaps that now exist between orbiting spacecraft and ground stations. Among the experiments the crew was scheduled to conduct was the deployment of instruments that would measure the ultraviolet spectrum of Halley's comet. Another was to sample radiation within the spacecraft at various orbit points. There was even a student project in which the effect of weightlessness on the development of twelve White Leghorn chicken embryos would be studied...
Lost along with the spacecraft were a$100-million satellite that was to have become animportant part of NASA's space-based shuttlecommunications network and a smaller $10 millionpayload that was to have studied Halley's comet...
...purpose of the mission was to release andretrieve one satellite to study Halley's comet andlaunch another to become part of the space-basedshuttle communications network...
Except for a sudden dash across the sky by Halley's comet--which appears about as often as the Patriots do in the Super Bowl--not much is going to deter 90 million Americans from watching the big game this Sunday...
During the seven months or so that Halley's is visible either through binoculars or to the naked eye, it will appear to move among the constellations. On the day you plan to look for Halley's, find the point on the chart that approximates the chosen date. This spot will help you determine the comet's position relative to familiar groups of stars. But the time of day for observing Halley's and the direction in which to look will vary. This week, for example, observers in the northern hemisphere should search the southwestern sky during the evening...