Although Earth only has one moon, it does have other natural satellites, including asteroid 2016 HO3, known as a "co-orbital object." These tiny celestial objects could be an "attractive location for extraterrestrial intelligence," according to a new study.
The research suggests that these space rocks could be hiding grounds for an advanced civilization, given their small size and close proximity to the planet.
"These near-Earth objects provide an ideal way to watch our world from a secure natural object," the study's abstract reads. "That provides resources an ETI [extraterrestrial intelligence] might need: materials, a firm anchor, and concealment. These have been little studied by astronomy and not at all by the Search for Extraterrestrial Intelligence (SETI) or planetary radar observations."
To read more, click here.