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They proposed that the Chicxulub asteroid was also a member of this group. [69] Subsequent evidence has cast doubt on this theory. A 2009 spectrographic analysis revealed that 298 Baptistina has a different composition more typical of an S-type asteroid than the presumed carbonaceous chondrite composition of the Chicxulub impactor. [70]
Chicxulub crater: 182 km (113 mi) 1.4% Cause or contributor of the Cretaceous–Paleogene extinction event: Sudbury Basin: 130 km (80 mi) 1% Moon (moon of Earth) Procellarum: 3,000 km (2,000 mi) 3,470 km 86% Not confirmed as an impact basin. South Pole–Aitken basin: 2,500 km (1,600 mi) 70% Imbrium: 1,145 km (711 mi) 33% Mars: North Polar Basin
The massive Chicxulub asteroid may have had some help from a second “sibling” asteroid, according to new research. TWO Asteroids May Have Killed Off the Dinosaurs, Scientists Say Skip to main ...
The massive Chicxulub asteroid that 66 million years ago slammed into what is now the Yucatán peninsula in Mexico released an estimated 420 zettajoules of energy.
However, in 1991, scientists found that the Chicxulub crater was the right age to have been formed by a massive asteroid strike coinciding with the demise of the dinosaurs.
The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico. [10] Its center is located near the town of Chicxulub, after which the crater is named. [11] It was formed by a large asteroid or comet about 10–15 km (6.2–9.3 mi) in diameter, [12] [13] the Chicxulub impactor, striking the Earth. The date of the ...
The asteroid that killed most dinosaurs 66 million years ago left behind traces of its own origin.. Researchers think they know where the Chicxulub impactor came from based on levels of ruthenium ...
This impactor excavated the Chicxulub crater that is 180 km (110 mi) in diameter. With an object this size, dust and debris would still be ejected into the atmosphere even if it hit the ocean, which is only 4 km (2.5 mi) deep. [3] An asteroid, meteor, or comet would remain intact through the atmosphere by virtue of its