Jan 11 1989
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(New page: A group of U.S. and Canadian astronomers announced that they had discovered evidence of vigorous activity in a white-dwarf star previously thought to be a stellar “corpse". This new and ...)
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A group of U.S. and Canadian astronomers announced that they had discovered evidence of vigorous activity in a white-dwarf star previously thought to be a stellar “corpse". This new and unexpected behavior may offer astronomers new insight into how stars are born, evolve, and ultimately die. The white-dwarf star, catalogued as 0950+139, lies at the center of the faint nebula called EGB-6 and is located about 1500 light years from Earth in the direction of the constellation Leo. The findings were presented at the 173rd meeting of the American Astronomical Society in Boston, Massachusetts. (NASA Release 89-3, Jan 11/89)
NASA issued a request for proposals to design and build a ground-based radar that would quantify and characterize debris orbiting between 180 to 360 miles above Earth. The radar would have the capability of detecting debris as small as one centimeter in diameter, contrasted with the 10-centimeter capability of current radar systems. The data gathered by the orbital debris radar would be used in designing the permanently crew-tended Space Station Freedom, which would be built to withstand as much orbital debris damage as possible. (NASA Release 89-8, Jan 19/89; W Times, Jan 23/89; NY Times, Jan 24/89; P Inq, Jan 29/89)
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