https://phys.org/news/2023-04-uae-space ... -mars.html
by Marcia Dunn
A spacecraft around Mars has sent back the most detailed photos yet of the red planet's little moon.
The United Arab Emirates' Amal spacecraft flew within 62 miles (100 kilometers) of Deimos last month and the close-up shots were released Monday. Amal—Arabic for Hope—got a two-for-one when Mars photobombed some of the images. It was the closest a spacecraft has been to Deimos in almost a half-century.
The spacecraft also observed the little explored far side of the odd-shaped, cratered moon, just 9 miles by 7 miles by 7 miles (15 kilometers by 12 kilometers by 12 kilometers).
Mars' other moon, Phobos, is almost double that size and better understood since it orbits much closer to Mars—just 3,700 miles (6,000 kilometers) away, the closest of any planet's moon in our solar system.
Deimos' orbit around Mars stretches 14,000 miles (23,000 kilometers) out. That's close to the inner part of the spacecraft's orbit—"which is what made observing Deimos such a compelling idea," said the mission's lead scientist Hessa al-Matroushi.