Nov. 20th, 2007
Rare Moon?
Nov. 20th, 2007 01:55 pmNew 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.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.
Rare Moon?
Nov. 20th, 2007 01:55 pmNew 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.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.
Rare Moon?
Nov. 20th, 2007 01:55 pmNew 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.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.
Colour me baffled because I thought that our solar system alone had a number of bodies that had suffered massive moon-forming impacts. The Earth, Pluto and EL61 come to mind as three examples.