I feel kinda cheap for making the first Meteorite Monday in nearly a month a relatively unoriginal list of links. I wanted to pick up where I left off with the last post about carbonaceous chondrites, but my own work in the meteorite lab is in need of attention. So, here’s a few of my favorite stories floating their way around the interwebz:
Technically this would be a meteorite since it was found on the earth. Wired physics blogger, Rhett Allain, uses physics to look at the validity of a supposed meteorite hitting a car in commercial for a science channel in the UK.
Yet another new mineral found in meteorite. The first was a titanium sulfide called Wassonite and this one, Panguite, is a titanium oxide. Interestingly enough, both come from relatively rare meteorites: Wassonite was discovered in an enstatite chondrite (highly reduced chemically) and Panguite is from Allende which isn’t nearly as chemically altered.
This may be one of the more significant finds in planetary sciences. This supposed impact crater is estimated to be about 3 billion years old. That would make it the oldest crater found on the earth thus far. It’s not completely conclusive, but the science looks solid and it’ll be interesting to watch it unfold as other researchers examine the evidence. This is significant because craters of that age are generally only found on the Moon or Mars. Earth’s a bit too hostile towards such things due to erosion and plate tectonics. Here’s a link to the abstract as it appears in Earth and Planetary Science Letters.