Here's a paper discussing rocks from Earth being tossed all over the solar system after being ejected by impacts on Earth. It's from 2013, and references a lot

Here's a paper discussing rocks from Earth being tossed all over the solar system after being ejected by impacts on Earth. It's from 2013, and references a lot of earlier papers on the topic. http://online.liebertpub.com/doi/abs/10.1089/ast.2013.1028 http://online.liebertpub.com/doi/abs/10.1089/ast.2013.1028