The actress, who was born in Roswell, recently sat down for an interview on The Late Show with Stephen Colbert.
During her recent appearance on the show to promote new TV series Landman, it wasn't long before the conversation turned to the topic of UFOs, not only because Moore is a Roswell native but also because Colbert happens to have a keen interest in the phenomenon as well.
The town, which is situated in New Mexico, is well known for its infamous UFO incident which allegedly saw an alien spacecraft crash-land nearby before being hushed up by the military.
"Something definitely happened," said Moore. "But when I was a kid, it was never spoken about. Never. It just was not ever ever talked about, not even in passing. It was as if it was a secret."
When Colbert pressed her on what she meant by 'something happened', she added:
"I don't know. Well, you know, the largest landing strip in America is in Roswell, so there's a lot of testing that goes on."
"Legally, you can't say anything or they'll take you out," Colbert joked.
"It's possible," Moore replied.
The actress then asked Colbert what it was about the topic of aliens he found so fascinating.
"The possibility there are aliens, or a branch of the military that's been putting out these videos of unexplainable pill-shaped things that go into the water and come out and go from like 0 to 6,000 miles an hour with absolutely no g-force impact - I mean, what?" he said.
"I am not the one with the problem."
You can check out the full conversation for yourself below.