Beyond the Bounds of Our Cosmic Neighborhood The discovery of a massive exomoon outside our solar system has sent shockwaves through the scientific community.
The moon, which orbits an unusual body called CD 35 2772, is at least as massive as Jupiter and challenges our understanding of what constitutes a planet.
CD 35 2772 is a brown dwarf, a gassy object that's too big to be a conventional planet but too small to ignite its nuclear furnace and become a star.