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e87669e7a3c3548dfa3b095dac4e21991
2007-09-16 10:05:54

AMES, Iowa -- An international team of astronomers that includes Steve Kawaler of Iowa State University has announced the first discovery of a planet orbiting a star near the end of its life. The announcement, culminating seven years of research, will be published in the Sept. 13 issue of the journal Nature. The news provides a preliminary picture of what could be the Earth's destiny in four to five billion years. That's when the sun will exhaust its hydrogen fuel, expand enormously as a red...

ee75f030038c1590744612acfbacb8d11
2007-01-09 16:55:00

Earth's inhabitants are used to temperatures that vary, sometimes greatly, between day and night. New measurements for three planets outside our solar system indicate their temperatures remain fairly constant "“ and blazing hot "“ from day to night, even though it is likely one side of each planet always faces its sun and the other is in permanent darkness. The reason apparently is supersonic winds, perhaps as strong as 9,000 miles an hour, that constantly churn the planets'...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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