On Sunday 15 January 2012 Russia’s failed Mars spacecraft Phobos-Grunt crashed into the Pacific Ocean, but what are the five biggest satellites to fall from orbit? Read on to find out.
Space
Space
Space
What is Phobos?
Explore the unusual surface of this doomed Martian moon.
Space
Mars’ moon remnant of catastrophic event
According to new evidence presented in Rome, Italy, Mars’ moon Phobos is made from rocks blasted off the planet’s surface in a catastrophic event, rather than the entrenched scenario that the satellite was captured by the planet’s gravitational pull and originated in the main belt of asteroids
Space
Phobos revealed
Phobos, Mars’ small rocky moon, has been imaged closer than ever before by the European Space Agency’s Mars Express spacecraft