This view of the Martian moons Phobos and Deimos comes from a set of photos taken by NASA's Mars rover Curiosity on Aug. 1, 2013, as Phobos (the larger one) passed in front of Deimos from Curiosity's perspective. (Image credit: NASA/JPL-Caltech/Malin Space Science Systems/Texas A&M...
000 years ago, Babylonian astronomer-astrologers called the planetNergalfor their god of death and pestilence. The planet’s two moons,Phobos(Greek: “Fear”) andDeimos(“Terror”), were named for two of the sons ofAresandAphrodite(the counterparts ofMarsandVenus, respectively, inGreek mythology...
Mars - the Red Planet Mars has two moons called Phobos and Deimos, both are probably asteroids which were caught up by Mars’ gravitational field. There are two rovers on the surface of Mars and six spacecraft orbiting Mars that are tasked with discovering the presence of water and searching...
A notable example of a refracting telescope is the 66-cm (26-inch) refractor of theU.S. Naval Observatory. This instrument was used by the astronomerAsaph Hallto discover the twomoonsofMars,PhobosandDeimos, in 1877. Today, the telescope is used primarily for observingbinarystars. The 91-cm...
Phobos is the larger of Mars’s two moons and very dark like Phoebe. For years investigators puzzled over the parallel grooves on Phobos until they realized they were formed by rubble which blasted into orbit during impacts and then spiraled back down over millennia and skittered to a halt ...