NASA waited 50 years to unseal these precious moon rocks

The last time anyone set foot on the moon, in 1972, astronauts plunged metal tubes into the lunar ground. They captured soil and rock and then sealed off the precious extraterrestrial material. One of the samples, 73001, has been fastened shut for half a century. But in recent weeks, scientists pierced the metal tube to reveal what's inside. Mashable spoke with these researchers, clad in their white clean-room attire, via a video chat just after they'd collected rare moon gases from sample 73001...