18 de Octubre 2005
Meteor Craters on Earth
Over the last few millions of years the Earth has had quite a few impacts from meteors, asteroids, and maybe even peices of comets. Scientists have confirmed 172 locations on the Earth determined to be "impact structures". In fact, the leading theory for the mass extinction of many animals, including the dinosaurs, 65.5 million years ago was an impact crater known as the "Chicxulub crater". These locations have been documented in a database available at the Earth Impact Database.
Thinklemon.com has taken the Impact Database and created Google Earth network links (he gets extra points for this) which not only shows the location of the 172 impacts, but shows a size indicator for the larger ones and provides links to Wikipedia articles and other information in the descriptions. He has organized the list by major continents and also includes a list of the top 25. Here is his announcement with his links, or you can download the entire collection now. This is a very nice collection, and since I have a degree in astronomy myself, I just had to write about this. Great job Caspar!
By the way, a good friend of mine has spent over 20 years as an astronomer helping to find near-Earth objects which may someday strike the Earth. He works at the Spacewatch Project at the University of Arizona. If anyone with lots of funding is looking to help us make plans to avoid a major future impact, Spacewatch would be a good project to fund.
Enviado por FrankTaylor at 18 de Octubre 2005 a las 08:45 AM
Enviado por: Caspar at 19 de Octubre 2005 a las 08:06 PM
Enviado por: zac at 17 de Noviembre 2006 a las 06:17 AM
Enviado por: Jake at 18 de Febrero 2007 a las 09:36 AM
Enviado por: Jake at 19 de Febrero 2007 a las 06:12 AM
Enviado por: Peter at 20 de Marzo 2007 a las 10:29 AM
Enviado por: jkull at 30 de Abril 2007 a las 09:52 AM
Enviado por: Tortuga Jorge at 28 de Mayo 2007 a las 08:01 PM
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