Written by a California community college biology instructor, this weblog explores biology, college instruction, cooking, and other topics.
Wednesday, October 13, 2004
Pulsating Stars
Sean Carroll over at Preposterous Universe has a snazzy image of "RR Lyrae variables, single stars that pulsate with periods of about half a day". He also links, in the same post, to movies of stars rotating around a million-solar-mass black hole at the center of out galaxy. Wow.
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