A subsatellite, also known as a submoon or a moonmoon, is a "moon of a moon" or a hypothetical natural satellite that orbits the moon of a planet. It is...

mapping camera, a laser altimeter, a mass spectrometer, and a lunar subsatellite deployed at the end of the moonwalks. The Lunar Module returned safely...

In the case of satellites, it is also known as a suborbital track or subsatellite track, and is the vertical projection of the satellite's orbit onto the...

Young and Duke rejoined Mattingly in lunar orbit, the crew released a subsatellite from the service module (SM). During the return trip to Earth, Mattingly...

able to host its own moon, called a subsatellite, in a stable orbit, although no evidence for such a subsatellite has been found. The original paper presented...

can stay in a low orbit indefinitely. The Apollo 15 subsatellite PFS-1 and the Apollo 16 subsatellite PFS-2, both small satellites released from the Apollo...

Hypothetical objects Fifth giant Nemesis Phaeton Planet Nine Planet V Planet X Subsatellites Theia Tyche Vulcan Vulcanoids Exploration (outline) Colonization Discovery...

stage". Retrieved 2011-01-01. "NASA NSSDC Master Catalog – Apollo 15 subsatellite". Retrieved 2011-01-01. "NASA NSSDC Master Catalog – Luna 20". Retrieved...

A hypothetical Solar System object is a planet, natural satellite, subsatellite or similar body in the Solar System whose existence is not known, but has...

cloud Hills Cloud Meteoroid Micrometeoroid Meteor Bolide Moons Moonlets Subsatellites (hypothet.) Minor planets (see below) Asteroids Dwarf planets Moons...