Fans of weird metal bits rejoice: a large metal ball has been discovered in Mexico, raising speculation that it is part of an extraterrestrial spaceship (as well as some much more grounded guesswork).

The orb, which meteorologist Isidro Cano characterized as “a very hard plastic or an alloy of many metals” in a Facebook post, appeared on the top of a tree just north of Veracruz. Witnesses witnessed the ball “dropping from the sky,” generating a noise but no flames, according to Cano.

He wrote in all caps, “DO NOT TOUCH OR COME NEAR IT UNTIL IT HAS BEEN REVIEWED BY A SPECIALIST,” and added, “IT MAY HAVE RADIOACTIVITY.”

In a subsequent post, he mentioned a “code” on the outside of the orb and stated that it “SHOULD NOT BE OPENED,” although maintaining that there are no evident apertures through which the orb may open.

He said that the spheres “ARE TIMED SO THAT AT SOME TIME THEY WILL OPEN ON THEIR OWN AND SHOW THE VALUABLE INFORMATION THEY BRING WITHIN THEM,” adding to the mystery of what the orb is.

Cano informed his followers on Monday that the “artifact” had been retrieved at 3:15 a.m. local time by a highly trained and specialized team and was being transported out of Mexico’s borders.

As for what it was, a logical bet is that it was either a weather balloon or, if you’re feeling adventurous, actual space junk. China’s Long March 5B rocket came down to Earth over the weekend, with bits found in Borneo and the Philippines, while an Australian farmer discovered a massive portion of what looks to be a SpaceX rocket earlier in July. So it’s not completely out of the question.