Moon may have formed from collision of tiny moonlets, shows new study
thanks: business standard 11th Jan.2017 and Nature Gioscience
dedicated by: kavignar Thanigai.
This entry was posted on January 11, 2017 by dawnpages. It was filed under Uncategorized and was tagged with " said Hagai Perets from the Technion. "It is likely that such moonlets were later ejected, " said lead author Raluca Rufo from Weizmann. "A long series of such moon-moon collisions could gradually build-up a bigger moon - the Moon we see today, " said Perets. The tidal forces from Earth could cause moons to slowly migrate outwards - the current Moon is slowly doing that at a pace of about one centimetre a year. A pre-existing moon would slow, " said Perets. To check the conditions for the formation of such mini-moons or moonlets the researchers ran 800 simulations of impacts with Earth. The new model is consistent with science's current un, " said Rufo., a previously formed moon could therefore already exist when another moon-forming giant impact occurs, according to a new study which contradicts the prevalent theory that our natural satellite resulted from a giant impact between a small Mars-like planet and the ancient Earth. The study also claims th, but rather the last in a series of moons that orbited our planet. The newly proposed theory by researchers at the Technion - Israel Institute of Technology and Weizmann Institute of Science in Israel , collide and merge, each one formed from a different collision with the proto-Earth, Earth experienced many giant impacts with other bodies. Each of these impacts contributed more material to the proto-Earth, or collided with Earth or with each other to form bigger moons, Small 'moonlets' may have collided to form the Moon as we see it today, their mutual gravitational attraction would eventually cause the moons to affect each other and change their orbits. "It is likely that small moons formed through the process could cross orbits, until it reached its current size. "We believe Earth had many previous moons.