Moon like ours (Milky Way) is rare compared to other solar systems
NASA recently announced that moons like our Moon in the Milky Way galaxy, are quite rare in other solar systems, Perhaps only 5-10% of other solar systems have one similar.
” The next time you take a moonlit stroll, or admire a full, bright-white moon looming in the night sky, you might count yourself lucky. New observations from NASA’s Spitzer Space Telescope suggest that moons like Earth’s – that formed out of tremendous collisions – are uncommon in the universe, arising at most in only 5 to 10 percent of planetary systems. ”
Full story – read