Credit: NASABy Clara LincolnholOnline rumors are swirling that a comet from another solar system might be a UFO — but Michigan State University researchers say that’s pure speculation. It’s behaving the way a comet does and has all of the features that define a comet, like a tail, he said. His team knows the nucleus’ ice must be made of a different element because the comet was first spotted moving from beyond where water is active, he said. There is nothing about the comet to suggest that it’s an alien or a UFO, said Shannon Schmoll, the director of the Abrams Planetarium. This story was reported as part of a partnership between WKAR Radio and Michigan State University’s Knight Center for Environmental Journalism.