Alzheimer’s disease is still destroying people’s brains. The cause remains unknown. Around the world, there will be walks to raise money for medical research.... »
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What a big mess
Materials formed in different times and places in space mixed “a whole lot” during the solar system’s formation, according to an international team of scientists who studied comet particles captured by NASA’s Stardust spacecraft in January 2004. “Comet dust seems to be a real zoo of things; we see all kinds of particles that are... »
Stardust Comet Aerogel
Andrew Westphal, Christopher Snead and Zack Gainsforth have produced over 100 keystones from the Stardust comet aerogel in UC Berkeley. This picture is an image of special ‘needles’ mounted on micro-manipulators controlled by computer to carefully and precisely cut out sections of aerogel that contain cometary samples. “Comets are important to the understanding of the... »
Geminids Meteor showers
The source of the Geminids is a mysterious object named 3200 Phaethon. No one can decide what it is. Before the mid-1800s there were no Geminids, or at least not enough to attract attention. The first Geminids appeared suddenly in 1862, surprising onlookers who saw dozens of meteors shoot out of the constellation Gemini.... »
