The worm endures, even though NASA dumped it more than 30 years ago, returning to “the meatball” — its original logo, with a blue circle, stars, an elliptical orbit trail and a swoosh ...

One of the world's best known and certainly most-traveled logos is 65 years old. The NASA insignia has adorned t-shirts and spacesuits, been reproduced 10 stories tall and reached the moon and Mars.

NASA's two logos—the "worm" and the "meatball"—have gained fans over the decades. ... A gun, a seat—and a major Lone Star State roadway frozen in gridlock. By Allyson Ackerman.