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A tale of two pulsars' tails: Plumes offer geometry lessons to astronomers
A tale of two pulsars' tails: Plumes offer geometry lessons to astronomers 17 January 2017In two studies, international teams of astronomers suggest that recent images from NASA's Chandra X-ray Observatory of two pulsars — Geminga and B0355+54 — may help shine a light on the distinctive emission signatures of pulsars, as well as their often perplexing geometry.
An ecological invasion mimics a drunken walk
An ecological invasion mimics a drunken walk 11 January 2017A theory that uses the mathematics of a drunken walk describes ecological invasions better than waves, according to Tim Reluga, associate professor of mathematics and biology, Penn State.
Deepest x-ray image ever reveals black hole treasure trove
Deepest x-ray image ever reveals black hole treasure trove 09 January 2017An unparalleled image from NASA’s Chandra X-ray Observatory is giving an international team of astronomers the best look yet at the growth of black holes over billions of years beginning soon after the Big Bang. This is the deepest X-ray image ever obtained, collected with about 7 million seconds, or 11 and a half weeks, of Chandra observing time.

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