There are more than 200 moons in the Solar System, including Phobos and Deimos, which orbit Mars. NASA's Odyssey orbiter has snapped new pictures of Phobos, giving new insight into the celestial satellite.
In a blog post, NASA JPL notes Odyssey took three new views of the 16-mile wide Phobos this past winter and spring. The new pictures show that heat distribution across the moon's surface varies in different conditions, which could give researchers new insight into what comprises Phobos.
"We're seeing that the surface of Phobos is relatively uniform and made up of very fine-grained materials," said Christopher Edwards of Northern Arizona University, who is leading the processing and analysis of the Phobos images, in a statement. "These observations are also helping to characterize the composition of Phobos. Future observations will provide a more complete picture of the temperature extremes on the moon's surface."
The images were taken using the orbiter's Thermal Emission Imaging System (THEMIS) camera, which is capable of measuring temperature.
The researchers pointed out that one of Mars' moons, Deimos, has a slightly altered orbit that suggests there was something responsible for its slight tilt.
Researchers are learning more about Mars' ancient past. A study published in March suggested the Red Planet had two unique reservoirs of ancient water that once flowed deep beneath the planet's surface.
NASA’s long-term goal is to send a manned mission to Mars in the 2030s.
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