It says that the moon was formed about 4.5 billion years ago, a few million years after the formation of the solar system, due to the collision of earth with a planet about the size of Mars.According to this theory a Mars sized planet once orbited the sun not far away from earth. �+I�4�>1�����-�S���+ZC_Ⱦ������� E�UW(O����ޠ�$�XB���m�ڶ�!RE0.� ��C�V2��aG�z� 溯ga(�Ϧ��qZyp����v���R��k`APS� ���֗���鎿Z��\l���G�uy]�߉���AFT��a�J� z����Dی�'�֣��F6�s�A����U`�W :1�����sFZv[*��%�Q7�=�?z����0 � m�l�[�/��S�.8����J}y;O�9\u�} (��U���j�@3�AK��Z�F��|���ڞ��Ebv��j�zwpD�� g&V�(bv����*�M3��uf=�^�Ã��ާ21^�����0Г�*n4�`�s��އ�8�8��m�@�����XG� 瞎��,j9�~*E7���5��/-�뻟H��UW6��*�!�!�&�� �^�� J��%Q$'lJ3��E��>��͖�.�\c�̵�v�î l�'L��A�B����6-f�0�ý��%��ph����0�⩦�r�*��ڪ_ُ|[�� A^ri5�դb�N����BX�Pg+�~;� �P�(���^ However, a small amount of Theia’s material remained, which was a bit bigger than the lunar mass. R� �� 3�y�k�%>U�tεW���ՆO�E��t1屜�(�i��?X��Q����Ȫ��v�Ѝ�@:�\���-�A潏F-�9����)nR+���U]����H�}���o���Tz��R�J�$��A�։�u=ikqyp�Y�,�v�c���9� �iQ����fV <> stream ƺ����r��%6��#H����f�Pv��Y��x�i��&��e�~��F�t䥆��23�$'+��'�٢H���ftVu-��'�Ҏt�(���v�jI���Z����l�#���dq�/��{ax�O��ƍ����##����&�U�N(��]@�A��`j��? (((((((((((((((((((((((((((((((((((((((((((((((((((�� �" �� �� = !1A"Qaq#2��B���R��r���$3CSb��� �� ' !1"AQq2Ra���� ? This story is known as the giant-impact hypothesis; the Mars-sized object is called Theia; and now, for the first time, scientists believe they've found traces of Theia in the Moon.. Under the influence of its own gravity, the ejected material became a more spherical body: the Moon. %# , #&')*)-0-(0%()(�� C �R������=��9�C���+���|�! About 30-50 million years after the solar system began to form, Theia collided with Earth.
The collision resulted in Theia being partially absorbed into earth, but a significant amount of debris from both Theia and Earth were sprayed around our planet. The giant-impact hypothesis, sometimes called the Big Splash, or the Theia Impact suggests that Earth's Moon formed out of the debris left over from an indirect collision between Earth and an astronomical body the size of Mars, approximately 4.5 billion years ago, in the Hadean eon; about 20 to 100 million years after the solar system coalesced. The Giant Impact Hypothesis is the currently favoured theory on how the moon was formed. When the Earth was still forming it was hit at a a glancing angle by a body approximately the same size as Mars, The Earth was titled and the ejected material formed the Moon, Computer models have shown this was possible and explains the moon's orbit and rotation. Giant-impact hypothesis The giant-impact hypothesis, sometimes called the Big Splash, or the Theia Impact suggests that the Moon formed out of the debris left over from a collision between Earth and an astronomical body the size of Mars, approximately 4.5 billion years ago, … Evidence for this hypothesis comes from Moon samples which show that: the surface of the Moon was once molten The base of this theory is that a giant impact occurred between a Mars-sized protoplanet, called Theia, and the proto-Earth. Gravity pulled the debris into orbit around earth and as the fragments collided, they began to quickly coalesce together to form today’s moon.The Giant Impact theory on how the moon was formed is supported by some evidence including: the identical direction of the Earth’s spin and the Moon’s orbit, Moon samples that indicate the surface of the Moon was once molten just like it should have been after the collision, the Moon’s relatively small iron core and evidence of similar collisions in other star systems (that result in debris disks).
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