Tuesday, 29 September 2020

Astronaut Serena M. Auñón-Chancellor Examines Her Eyes in Space


Astronaut Serena Auñón-Chancellor examines her eye with a Fundoscope aboard the International Space Station with remote support from doctors on the ground. via NASA https://ift.tt/3kXWT9C

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An Eye-catching Star Cluster

Westerlund 1 is the biggest and closest “super” star cluster to Earth. Data from Chandra and other telescopes are helping astronomers delve...