Friday, 21 May 2021

Firing Up the RS-25 Engine Test for Future Artemis Moon Missions


NASA conducted its fourth RS-25 single-engine hot fire test of the year on May 20, 2021, a continuation of its seven-part test series. via NASA https://ift.tt/3v7P072

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Red, Green Light Show

A green and red aurora streams across Earth’s horizon above the city lights of Europe in this Jan. 19, 2026, photograph, which looks north ...