Lionel is measuring cosmic symplectite (COS) in our NanoSIMS. This is very exciting for us as COS is one of the most interesting mineral assemblages ever discovered. It’s tiny and rare but holds clues about comets, the outer Solar System, and the transport of water in planetary systems.
We have returned from the 50th Lunar and Planetary Science Conference! It was a great conference, highlights include a screening of the Apollo 11 movie (it was spectacular), major announcements, meeting up with old friends, lots of fantastic science talks (it’s hard to pick a favorite but this is certainly a contender), and many discussions about future science projects. It’s good to be back in St. Louis though, and back to teaching!
People tend to picture irons when they hear “meteorites”. They are varied and fascinating and could provide interesting constraints on the formation of the Solar SYstem.
Today is one of the most exciting/stressful days of the year — LPSC abstract deadline day! Our group submitted a lot of great abstracts today — covering topics ranging from the Sun to the asteroid belt to distant supernovae.
Tomorrow is commonly known as the least productive day in planetary science.
Olga Pravdivtseva was awarded a NASA grant to use the iodine-xenon radiometric chronometer to investigate the formation and alteration of components in the CK and CV carbonaceous chondrites. Olga is one of the world’s experts in this technique which provides us with exquisite time resolution to understand processes in the early Solar System. With these measurements, it is possible to constrain the timing of events that happened four billion years ago to +/-100,00 years. This is equivalent to remembering the time at which something that happened a year ago to within 15 minutes!
The Atacama Large Millimeter/submillimeter Array (ALMA) released amazing images of twenty protoplanetary disks in the early stages (first few million years) of planet formation from the Disk Substructures at High Angular Resolution Project (DSHARP).
Our group studies these processes in our own Solar System using rocks that were around then.
This was a really cool project — measuring New Horizons’ upcoming target by stellar occultation, a sort of eclipse of another star by a distant object in our Solar System where the shadow passed over a small part of Earth. In a few weeks we’ll get to see Ultima Thule up close!
Happy Arrival at Bennu Day!