Tshirt NASA Meatball
$15
In the “meatball” design, the sphere represents a planet, the stars represent space, the red chevron is a wing representing aeronautics (the latest design in hypersonic wings at the time the logo was developed), and then there is an orbiting spacecraft going around the wing.
Known officially as the insignia, NASA’s round logo was not called the “meatball” until 1975, when NASA decided a more modern logo was in order and switched to the “worm”–a red, stylized rendering of the letters N-A-S-A.
