Quantcast

Latest Chicxulub crater Stories

e163f58495eb76a8767be5902b63749b1
2005-03-23 07:20:00

Chicago -- Scientists at the American Museum of Natural History and the University of Chicago have explained how a globe-encircling residue formed in the aftermath of the asteroid impact that triggered the extinction of the dinosaurs. The study, which will be published in the April issue of the journal Geology, draws the most detailed picture yet of the complicated chemistry of the fireball produced in the impact. The residue consists of sand-sized droplets of hot liquid that condensed from...

805be7a521cc86688722619f4943672d1
2005-01-14 07:55:00

MEXICO CITY (AP) -- Scientists working off the Yucatan Peninsula are preparing to use sound waves to search for information about an asteroid that may have wiped out the dinosaurs 65 million years ago. But environmental activists are trying to shut the project down, saying the technology could harm whales, sea turtles and several varieties of fish that provide a livelihood for thousands of Mexicans along the gulf coast. Marine seismologists from the University of Texas Institute of...

b49399ddf37f19091fbf946b46011b421
2004-12-11 10:54:06

How the earth might recover from a mass extinction is as important as what might have caused the catastrophe in the first place. Penn State astrobiologists are looking at species immigration as one way for the Earth to recover its biodiversity. Astrobiology Magazine -- The length of time necessary to recover from a mass extinction may seem like a problem from the past, but a team of Penn State researchers is investigating recovery from the second largest extinction in Earth's history at the...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.