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X-ray spacecraft to search for black holes
HONOLULU, April 11 (UPI) -- A scientist in Hawaii says the asteroid implicated in the extinction of dinosaurs was much smaller than previously suggested.
Francois Paquay of the University of Hawaii Manoa has developed a new tool using variations of osmium isotope composition in the marine sediment record to estimate the size of asteroid impacts, the university said Thursday in a release.
The findings are published in the journal Science.
Paquay said sediment shows the asteroid that created Chicxulub crater off the coast of Mexico was about 2.5 miles wide -- less than half the size that researchers had previously suggested, the Los Angeles Times reported.
The researchers estimate the size of the asteroid that created the 63-mile-wide Popigai crater in Siberia at about 1.7 miles across. Previous estimates had put that asteroid at about 2.5 miles across.
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BAILIEBOROUGH, Ireland, May 27 (UPI) --
Two spectators were killed Sunday when a rally car at a race in Bailieborough, Ireland, crashed into a crowd on the side of a rural road, officials said.
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CANNES, France, May 28 (UPI) --
Austrian director Michael Haneke's film "Amour" won the Cannes Film Festival's top prize, the Palme d'Or, officials said.
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CAPE CANAVERAL, Fla., May 26 (UPI) --
Astronauts aboard the International Space Station have boarded the unmanned Dragon spacecraft and began unloading supplies, NASA TV showed.
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