“There are currently 175 known moons orbiting the eight planets in our solar system. While most of these moons orbit Saturn and Jupiter, which are outside the Sun’s habitable zone, that may not be the case in other solar systems,” said Stephen Kane, an associate professor of planetary astrophysics and a member of the University of California Riverside’s Alternative Earths Astrobiology Center about the life-bearing potential of moons of planets beyond our solar system. “Including rocky exomoons in our search for life in space will greatly expand the places we can look.”
Avi Shporer, Research Scientist, MIT Kavli Institute for Astrophysics and Space Research. A Google Scholar, Avi was formerly a NASA Sagan Fellow at the Jet Propulsion Laboratory (JPL). His motto, not surprisingly, is a quote from Carl Sagan: “Somewhere, something incredible is waiting to be known.”
Astrobiologists predict that alien moons may prove to be hotspots for life in the Milky Way. Rogue moons, dubbed “ploonets”, could explain several puzzling phenomena, not the least of which is why astronomers have so far confirmed the existence of at least 4098 exoplanets, but not a single alien moon.
“An artificial submoon may be stable and thereby serve as a time capsule or outpost for a technological civilization. On a stable orbit around the Moon–such as the one for NASA’s proposed Lunar Gateway–a submoon would keep humanity’s treasures safe for posterity long after Earth became unsuitable for life.”