Friday, 3 August 2018

A New Era in Spaceflight


The first U.S. astronauts who will fly on American-made commercial spacecraft, to and from the International Space Station, wave after being announced, Friday, Aug. 3, 2018. via NASA https://ift.tt/2Mhe1q3

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Celebrating NASA's Mars Reconnaissance Orbiter's 20th Anniversary: Crater Near Sirenum Fossae

This impact crater, as seen by NASA's Mars Reconnaissance Orbiter in 2015, appeared relatively recent as it has a sharp rim and well-pr...