Ida the tiny asteroid moon spotted by Galileo probe
A mile long asteroid named Ida has been confirmed to have a natural satellite. The Galileo spacecraft detected the micro moon while passing through the asteroid belt en route to Jupiter. The finding confirms long held suspicions that asteroids can have moons.
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Evaporation and cooling in simple tea experiments
A child friendly explanation shows evaporation cooling as warm liquid or air loses heat to surroundings. It compares rubbing alcohol and water, notes historical use to reduce fevers, and describes a second experiment turning gas to liquid with warm tea and ice to illustrate how cold surfaces condense water vapor.
Comet Fragments to Hit Jupiter Amid Celestial Fireworks
Chunks of Shoemaker Levy 9, some up to 2.5 miles wide, are expected to strike Jupiter between July 16 and 22. Impacts would create enormous fireballs and deep atmospheric holes, with plumes possibly rising hundreds of miles. The gas giant’s size suggests it will absorb the blows, but the events could affect Earth if similar debris reached us.
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Iowans View Comet Collision With Jupiter Predicted
Cedar Rapids astronomer says viewing the Shoemaker Levy 9 impact from Iowa will be good via Hubble or local telescopes. UI Museum of Natural History and Iowa City Astronomy Club set up at Wetherby Park 8 p.m. Saturday with rain date Sunday. Cedar Rapids Amateur Astronomers plan six telescopes at Cedar Rapids Science Station 427 First St SE 8:30 to 10 p.m. July 20.
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