Picking up where we left off yesterday on the trickiness of TAG… Bennu is a "no landing zone" in my book, which makes collecting a sample an entirely different ball game!pic.twitter.com/YnflDLXm9O
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Bennu’s tiny gravitational field makes predicting my trajectory a tricky business. Small forces like pressure from sunlight change my path in significant ways. Between Bennu's microgravity and other forces, aiming for a "bullseye” on Bennu's surface is a bit *rocky*
pic.twitter.com/hu2G6tm0dd
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So our @LockheedMartin teammates designed something that'd work better for Bennu's difficult environment - TAGSAM 
TAGSAM is the Touch-And-Go Sample Acquisition Mechanism, and its collector head is the only part of the spacecraft that'll touch Bennu while snagging a sample.pic.twitter.com/yGILUahow8
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