New images and video captured by ESA’s Mars Express orbiter show two small Martian moons Phobos and Deimos drifting in front of the giant planet Saturn and background stars.
Spacecraft exploration of Phobos and Deimos - ScienceDirect
Bob Gardner's Mar's, Here We Come! Talk, Section 5 (2003 version)
Where is Deimos? Anne's Astronomy News
ESA's Mars Express Spacecraft Observes Phobos and Deimos
ESA - Martian moon Phobos in detail
MARS EXPRESS (ESA SPACECRAFT)
Mars Express – one of ESA's most successful missions to date
Mars Express observed the Earth from Mars orbit
International Mars Missions – IMEWG
Can you see Phobos and Deimos from the surface of Mars (at night
Spaceflight Now, Breaking News
Mars' moon almost certainly made of rubble
Phobos News - SciTechDaily
Deimos Archives - Universe Today