Baby baboon brain anatomy predicts which hand they will use to communicate

The Inside Story of the First Untethered Spacewalk. On February 7, 1984, astronaut Bruce McCandless ventured out into space and away from shuttle Challenger using only a nitrogen-propelled, hand-controlled backpack.

A Nebula that Extends its Hand into Space

'God's Hand' interstellar cloud reaches for the stars in new Dark Energy Camera image (video)