Moons of Mars formed a large moon. Gravitational interactions between this moon and the outer ring formed Phobos and Deimos. Later, the large moon crashed into Mars, but the two small moons remained in orbit. This theory agrees with the fine-grained surface of the moons and their high porosity. The outer disk would create fine-grained material. While many Martian probes provided images and other data about Phobos and Deimos, only few were dedicated to these satellites and intended to perform a flyby or landing on the surface. Two probes under the Soviet Phobos program were successfully launched in 1988, but neither conducted the
What's Easy for Two Is Hard for One What's Easy for Two Is Hard for One "What's Easy for Two Is Hard for One" (also known as "What's Easy for Two Is So Hard for One") is a song written and produced by Smokey Robinson and released as a single by singer Mary Wells for the Motown label. In this song, the narrator is longing for a longtime partnership with a suitor and constantly begs the man to "take her to the preacher man" in hopes the couple does "what should be done" because "what two can easily do is so hard to be done by one". Released