AP Photo

Eons before man dreamed of exploring the heavens, dinosaur tracker Ray Stanford is convinced, a low-slung armored beast roamed what is now a NASA campus in Greenbelt, stamping a huge footprint that went unnoticed until he spied it this summer.

A scalloped mini-crater with four pointy toe prints pressed into ruddy rock, the putative dinosaur track juts out from a scruffy slope at NASA’s Goddard Space Flight Center, home to 7,000 scientists, engineers and other workers with their eyes firmly turned skyward.