“Day of Remembrance 2018” was uploaded to Flickr

On the last Thursday in January, NASA pays tribute to the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other NASA colleagues who lost their lives while furthering the cause of exploration and discovery. via NASA ift.tt/2GiIbGQ
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Day of Remembrance 2018 was taken on January 25, 2018 at 05:37AM