Word: carbonic
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Dates: during 1970-1979
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...George Low and most other space specialists leaned to a far simpler explanation for the deaths: a mechanical or structural failure aboard Soyuz. Because the cosmonauts were not in protective pressure suits at the time of the descent, they could have died from any number of causes-excessive heat, carbon dioxide fumes from a small fire, a nitrogen leak from the spacecraft's atmosphere system, or even a rapid drop in cabin pressure. Such theories got support from some unconfirmed reports that all radio transmissions-not only voice but also telemetry signals-stopped at the end of the braking...
...produce or sustain life as we know it are also absent. The presence of unoxidized iron on the moon-totally absent on earth-indicates that the moon has had negligible amounts of free oxygen if any at all. The analyses of the lunar rocks gives a concentration of carbon of 30 to 300 parts per million yhile earth rocks normally contain 100 times that much carbon...
Most of the lunar carbon appears to be in the form of gas bubbles-mostly carbon monoxide-inside the tiny glass beads. The samples also contain some methane and ethane-simple saturated hydrocarbons-which might be native to the moon. More complex hydrocarbons are concentrated in earth rocks at about 100 parts per million but were undetectable in the lunar rocks to an accuracy of one part per billion...
Compared to meteorites which have been analyzed, the moon is extremely lifeless. Some meteorites have as much as five per cent carbon (more than 200 times the moon quantity) and one-the Murchison meteorite which fell in Australia in 1967-contains substantial amounts of amino acids-some of which are biologically active. However, none of these carbonaceous meteorites show any indications of living organisms...
...known since 1839. Pratt & Whitney also designed the fuel cells used in Apollo flights. But the specific and well-financed proposal to employ them en masse is new. For environmentalists, Powercel would deliver power with a plus: the only waste products of its chemical reaction are harmless water vapor, carbon dioxide, and a little heat. Its on-site use would eliminate unsightly power lines as well as the complex network of power plants, substations and generators...