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White Dwarf Star Measurements Bring Milky Way Into Focus
latimes.com 1 day, 10 hours agoA study uses a new technique for calculating the masses and ages of old stars based on the masses of the white dwarfs they have become.White dwarf stars are dying stars , burned-out cinders that have exhausted the hydrogen that sustains them. But scientists may soon count on these stellar flameouts to unravel the history of the Milky Way.
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Mars: A World For Exploration
wired.com 3 weeks, 2 days agoOur understanding of Mars has come a long way since we launched our first probe toward the planet in 1964. In 1959, at the dawn of the Space Age, Pluto discoverer Clyde Tombaugh summed up conditions on Mars for members of the American Rocket Society. Space historian David S. F. Portree takes stock of how far our knowledge has advanced - and how much we have left to learn.










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