Scientists studying a meteorite fragment that fell to Earth in 2008 have found evidence that suggests it may have originated from a Mercury-sized planet that no longer exists. The makeup of a meteorite — the elements it contains, what ratios they're… social experiment by Livio Acerbo #greengroundit #engadget https://www.engadget.com/2018/04/17/scientists-think-meteorite-diamonds-formed-lost-planet/