Changes

**A high-velocity collision might be sufficient to release enough energy to place a substantial mass of the Earth's crust into orbit.

**A high-velocity collision might be sufficient to release enough energy to place a substantial mass of the Earth's crust into orbit.

== Criticism of the Giant-Impact Model ==

== Criticism of the Giant-Impact Model ==   

 

This new theory fail lacks testability and falsifiability, which are essential aspects of science as explained by [[Karl Popper]].  

Scientists did find that none of three proposed tests are "supportive of the Giant Impact model."<ref>http://www.lpi.usra.edu/meetings/origin98/pdf/4045.pdf</ref>

Scientists did find that none of three proposed tests are "supportive of the Giant Impact model."<ref>http://www.lpi.usra.edu/meetings/origin98/pdf/4045.pdf</ref>