PASADENA, Calif., Aug. 30 (UPI) -- NASA says its Mars rover Curiosity captured an image of the moon Phobos passing in front of the sun in the sharpest images ever taken of a Martian eclipse.
Because of its small size, Phobos does not fully cover the sun as seen from the surface of Mars, so the solar eclipse is what's called a ring, or annular, type, NASA's Jet Propulsion Laboratory in Pasadena, Calif., said.