May 2020 -

The Příbram Meteorite: The First “Deliberately Witnessed” Fall

By Martin Horejsi | May 1, 2020 | Accretion Desk

With cameras almost everywhere these days, capturing an event no matter how serendipitous, is almost expected. However, a meteorite whose fall is photographed is still a rare breed indeed. The list is a short one and all members on that list are desirable to collectors and scientists alike. Lost City is probably the most famous of the scientific image captures,

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Meteor Crater a Century Later

By James Tobin | May 1, 2020 | Jim's Fragments

2020 will go down in history as a very strange year. The world entered into isolation practiced social distancing and generally tried to avoid the COVID 19 pandemic. As I wrote this in mid-May I reflected on Meteor Crater 100 years ago. The world then was just coming out of a pandemic. The Spanish Flu of 1918 through the spring

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NWA 12774 Angrite

By John Kashuba | May 1, 2020 | Micro Visions

NWA 12774 angrite was purchased from a Mauritanian dealer in March 2019, changed hands in Ensisheim in June and we bought material in August to thin section. Angrites are rare ancient achondrites which crystallized on the parent body as early as only 4 million years after the condensation of CAI. Samples have a wide distribution of cosmic ray exposure ages

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Chicxulub Tektites?

By Norm Lehrman | May 1, 2020 | Norm's Tektite Teasers

The Wuhan coronavirus has served as a vivid reminder of how quickly our whole world can change. It has brought to public consciousness great plagues and epidemics of the past, but I have seen no mention of the truly monstrous life changer of geologic history. Virus particles commonly are of the order of 20 to 300 nanometers in diameter (20

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Glorieta Mountain

By Paul Harris | May 1, 2020 | Meteorite Of The Month

Our Meteorite of the Month is kindly provided by Tucson Meteorites who hosts The Meteorite Picture of the Day.

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