Lost photos suggest Mars’ mysterious moon Phobos could be a captured comet in disguise
The Martian moon Phobos may actually be a comet — or at least part of one — that was gravitationally captured by the Red Planet long ago, suggests a new reprint study based on previously unpublished photographs. For years, researchers have pondered the origins of Phobos and its twin, Deimos. Some have theorized that the … Read more