This video shows one of the moons of Mars, Phobos, filmed in visible light by NASA’s 2001 Mars Odyssey orbiter.
The images were taken, from top to bottom, on September 29, 2017, Febuary 15, 2018, and April 24, 2019. The movement, by the way, is more apparent than real, an artefact of shifting by the orbiter’s infrared camera, known as the Thermal Emission Imaging System (THEMIS).
In the central panel, Deimos, Mars’ other moon, can also be seen.
Curated content from the editorial staff at Cosmos Magazine.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.