"New Insights Challenge Previous Beliefs About Mars's Moon Phobos"

Researchers analyzing unpublished photos of Mars's moon Phobos have found that its properties resemble those of comets, suggesting it might be a bilobated or binary comet. This challenges existing theories about its origin, which include formation from a debris disk or capture of an asteroid. The upcoming JAXA Martian Moons eXploration mission aims to return samples from Phobos, potentially providing more definitive answers.