Is it an aborted fetus, a monkey or an alien that crash-landed from space?

The Atacama Humanoid, the “alien-looking” skeleton that was found in Chile's Atacama Desert in 2003, has been found to be human, according to the new documentary film "Sirius."

Here’s the newest information to be released about the 6-inch alien-looking skeleton: Ata was a male who lived to the age of 6 or 8. It's a remarkable finding since its size looks like that of an aborted fetus, but researchers determined his age by studies of bone density and epiphyseal plates, the growing ends of bones, wrote.

Even though Ata looks more like an alien than a human, researchers are sure the creature is a homo sapien despite its elongated skull and nine ribs.

The discovery could be somewhat disappointing for UFO enthusiasts who were hoping Ata proved there was extra-terrestrial life.

Oscar Munoz found the remains on Oct. 19, 2003, near an abandoned church, a local Chilean newspaper wrote, when he was looking for objects with historical value in La Noria, a ghost town in the Atacama Desert. The creature was found in a white cloth container, according to the newspaper.  

Researchers used DNA testing to determine the creature’s species and referred to Ata as an “interesting mutation.”

“I can say with absolute certainty that it is not a monkey. It is human -- closer to human than chimpanzees. It lived to the age of six to eight,” the UK’s Daily Mail quoted Garry Nolan, director of stem cell biology at Stanford University's School of Medicine in California.

“Obviously, it was breathing, it was eating, it was metabolizing. It calls into question how big the thing might have been when it was born.

"The DNA tells the story, and we have the computational techniques that allows us to determine, in very short order, whether, in fact, this is human,” Nolan explains in the film.

“Sirius” premiered in Los Angeles for Earth Day on Monday.