Word: oxygenates
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Dates: during 1990-1999
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...samples and fed them into the miniature biology lab, where they were analyzed for signs of growth, metabolism and respiration, processes that would signal the presence of living microorganisms. In one of the tests, a soil sample dampened with "chicken soup"--a nutrient broth--gave off a burst of oxygen. In another, unexpectedly large amounts of carbon dioxide and carbon monoxide were released. While both results produced flurries of excitement at J.P.L., scientists eventually--though reluctantly--concluded that the gases resulted not from life processes, but from some exotic Martian chemistry. Their conclusion was bolstered when neither lander detected...
...past several months, the creaking Mir, built to last just five years but now in its 11th, has been beset by problems, including a loss of oxygen, a breakdown in its cooling system and even an onboard fire. But last week's accident was clearly the worst...
...reviewed 86 separate studies about the association between soot and dust particles and human illness. The agency was already thinking about tightening its rules on ozone, a noxious form of oxygen produced in the burning of fossil fuels. (Another fossil-fuel combustion by-product, carbon dioxide, is a greenhouse gas, responsible in large part for the phenomenon of global warming.) It reviewed an additional 186 studies on ozone, making this, according to Browner, the most extensive scientific review undertaken for any air standard the EPA has proposed...
...with repair equipment finally docked with the crippled space station. Cosmonauts needed the supplies for the repair work they'll do during a spacewalk July 17, when they will reconnect power lines with the station's damaged Spektr module. Also delivered today: the world's worst airline food, some oxygen, fuel and a toothbrush for American astronaut Michael Foale...
...astronomers from Cornell University determined that what the Defense Department's Clementine space probe showed as waves of frozen water is instead merely the rough surfaces of impact craters. If true, the news could mean a setback for space explorers hoping to use the ice to produce hydrogen and oxygen, the main components of rocket fuel. The team said its findings are more accurate than Clementine's, since the Arecibo Observatory has better resolution than the probe. But the existence of ice on the moon cannot be entirely ruled out, the team acknowledged, until scientists study the lunar surface...