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In space, they say, no one can hear you sneeze. But Apollo 17 astronaut Harrison Schmitt was doing a lot of that inside the Challenger command module when he visited the moon in 1972.
One day, after a lunar walk, Schmitt accidentally breathed in some of the abundant moon dust that he and his commander had tracked back in to the Challenger living quarters. For a full day, Schmitt suffered from what he described as "lunar hay fever." His eyes watered, his throat throbbed, and he broke into a sneezing fit.
May - NASA - Synchronous - Meteorological - Satellite
On May 17, 1974, NASA launched the first Synchronous Meteorological Satellite, SMS-1. This was the first satellite designed to monitor meteorological conditions from a geostationary orbit. This kind of orbit allowed it to stay above a fixed location as Earth rotates. One of the instruments on this spacecraft was a visible infrared spin-scan radiometer (VISSR), which provided high-quality cloudcover data 24 hours a day. It also carried a data collection and transmission system that allowed it to relay data from central weather facilities to smaller regional stations. Another device known as a space environmental monitor measured the charged particles in Earth’s radiation belts and the solar wind. The satellite was shaped like a cylinder and measured about 7.5 feet long, not including a 33-inch magnetometer that stuck out of one end. It launched from Cape Canaveral on a Delta rocket and remained operational for about 7 years. It was replaced by the National Oceanic and Atmospheric Administration’s new GOES satellite, which was almost identical.
Dust on the moon behaves a little differently than dust on Earth. For starters, it's sharp. Because there's no wind on the moon, the dust never erodes. Instead, grains of moon dust — which are largely the products of micrometeorite impacts — remain sharp and abrasive and can...
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