Word: spacecrafts
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...etch one page of your text or photos on an "Eternity Disk," left, which will be left on the moon by Lunar Retriever 1 in 2002. With luck, future moongoers may be able to find it among all the other stuff left behind by 14 Soviet and 24 NASA spacecraft...
...Hawaii discovery did not mark the first time a moonlet had been found around an asteroid. In 1993 the Galileo spacecraft sped past the 20-mile-wide asteroid Ida and spotted a scrap of moon just under a mile wide circling it. But the only way Galileo could detect the tiny target was to fly there across many millions of miles of space and do its exploring up close. Now, thanks to new optics in the CFHT, it's possible to search for moonlets from the comfortable perch of a faraway Earth...
Closing in at 42,500 m.p.h., one of the largest and most complex spacecraft ever built will pass only 725 miles from Earth Tuesday on its way to a 2004 rendezvous with Saturn, its spectacular rings and its giant moon, Titan. The ship is Cassini, and while it's an object of pride for space scientists, it's an object of fear for antinuclear activists. Weighing in at around six tons at its launch in October 1997, Cassini lacked the rocket power to fly directly out to Saturn, which is on average 800 million miles from Earth. Instead it headed...
...sunlight Earth does, and the solar panels needed to supply Cassini at that distance would have to be far too large for such a mission. Other than plutonium generators, says physicist James Van Allen, discoverer of Earth's radiation belts, "there is no practical source of electrical power for spacecraft that go to the outer planets." Controllers at the Jet Propulsion Laboratory report that Cassini, having already flown more than a billion miles, is in excellent shape. All systems are operating well, and the craft is on course for a flyby of home...
...sunlight Earth does, and solar panels needed to supply Cassini at that distance would have to be far too large for such a mission. Other than plutonium generators, says physicist James Van Allen, discoverer of Earth's radiation belts, "there is no practical source of electrical power for spacecraft that go to the outer planets...