Humanity now has its first detailed look at one of Mars' moons.

The United Arab Emirates' Hope Probe recently published a picture of a close-up look at one of its moons, Deimos, for the first time in human history.

The Hope Probe is the UAE's is expected to be the first probe to provide a complete picture of the Martian atmosphere and its layers, hopefully over one Martian year (687 days), per the official Emirates Mars Mission website.

UAE Hope Probe Deimos Picture Details

The UAE's Hope Probe took the picture of Deimos from as close as 60 miles (100 km), the closest look yet, revealing the moon's pockmarked face, per Space.com.

The pictures the space probe captured were important as they represent a significant step in humanity's knowledge of the moon, its atmosphere, composition, origins, and what this means for our understanding of Mars more broadly, said the UAE's Space Agency.

Case in point, the Hope Probe's pictures suggest that it came from the Red Planet itself and not an asteroid or dwarf planet caught by Mars' gravitational pull, as previous studies suggested. Sarah Al Amiri's tweet regarding the picture provided new insights into Deimos' makeup and structure, which challenged previously accepted theories about Deimos' origins.

Additionally, data from the Emirates Mars Infrared Spectrometer suggests that both Phobos and Mars are "more akin to a basaltic Mars than a D-type asteroid such as the Taggish Lake meteorite often used as an analog for the spectral properties of Phobos and Deimos," instrument scientist Christopher Edwards said in the same statement.

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How Deimos (and its partner moon, Phobos) came to be have been mysteries since its discovery in 1877, though many spacecraft have tried to know where it came from. For instance, NASA's Mariner 9 satellite in 1971 managed to get some pictures of the moon, but was from afar, preventing experts from determining Deimos' composition.

While previous studies showed that Deimos is either an asteroid or a dwarf planet caught by the planet's gravity, the moon's orbit is almost circular and the way it travels suggests it previously slowed against Mars' atmosphere. This observation throws a wrench at it being an asteroid or dwarf planet.

UAE Hope Probe Details

The UAE sent its Hope Probe to Mars to study its climate and help humanity understand what Mars was like when its atmosphere could have supported life, per The Planetary Society. The mission it went on is the Arab world's first to another planet.

The space probe comes with an array of instruments to help it accomplish its mission of providing a complete picture of the Martian atmosphere and its layers. It has an infrared spectrometer, dubbed the Emirates Mars Infrared Spectrometer, to help it study Mars' lower atmosphere in the infrared band/

It also measures the global distribution of fust, clouds, water vapors, and temperature profiles.

Meanwhile, its Exploration Imager, dubbed the Emirates Exploration Imager, studies the planet's lower atmosphere in visible and ultraviolet bands and captures high-res images of the Red Planet, among other things.

Last but not least is the Emirates Mars Ultraviolet Spectrometer, which determines the abundance and variability of carbon monoxide and oxygen in the thermosphere on sub-seasonal timescales.

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