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SVE NEWS & Space Sharing Series – Astronaut medical issue forces NASA to call off spacewalk at space station

The “minor medical issue” is not an emergency, NASA says. NASA astronaut Mark Vande Hei on a spacewalk outside the International Space Station in 2017.  (Image credit: Randy Bresnik/NASA/Twitter) NASA has called off plans for a spacewalk outside the International Space Station this

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SVE NEWS & Space Sharing Series — Powerful X-ray burst from black hole ripples through galactic dust in new NASA image

Concentric ripples in galactic dust clouds triggered by a black-hole burst. (Image credit: NASA/CXC/U.Wisc-Madison/S. Heinz et al.; Optical/IR: Pan-STARRS) NASA has released a new image of ripples in dust clouds created by an unexpected black hole X-ray burst observed in 2015. The image,

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