ANIMALS WERE OUR FIRST
SPACE TRAVELERS, CLEARING
THE WAY FOR ASTRONAUTS
WHO BECAME FAMOUS—AND
FOR LESSER KNOWN HEROES.
LEFT: John Glenn wore
this space suit, made
with 27 zippers to
ensure a tight fit, when
he orbited Earth on
February 20, 1962.
PIONEERS
T MINUS
BY NADIA DRAKE PHOTOGRAPHS BY DAN WINTERS