March 10, 2020 was the last time I walked into the bar at The Hideout to hear a scientist. That time the room was jammed and I was attending events at one venue or another a few times a week. This time I sat outside, with a smattering of others, had to show proof of vaccination, and none of those other venues have reopened yet.
So I was excited to hear someone talk about meteorites. You take when you can get.
Maria Valdes has a PhD in Geochemistry and Cosmochemistry, which I didn’t even know existed, and is the Robert A. Pritzker Curator for Meteoritics and Polar Studies at the Filed Museum. We have so much in common. Her earliest ambition was to be a dentist. I have a dentist. As a child, she went to DNA camp. I never went to camp, but I have DNA. Her specialty is calcium isotopes. I drink milk.
She’s going on a trip to Antarctica to search for micrometeorites, because, although they’re all around us, about 5,200 metric tons of them falling to the Earth every year (she says some would probably fall out of your hair if you shook your head), they’re easier to find where they stand out against the ice and snow.
She has held in her hands, to show to bored museum donors, a part of the Black Beauty meteorite, original weight 319.8 grams, found in 2011 in the Sahara Desert, and, as of 2018, having a sales price of $10,000 per gram. I think I’ll go shake my head and see what falls out.