What we're going to do is figure out the mass of our asteroid, calculate how much energy it hit the Earth with, and see whether that would be enough to have an appreciable effect on the entire planet. Mass first. For a sphere that's 10 km in diameter, let's assume it's got the...
Comments from Professor Gerta Keller, a geoscientist from Princeton University, regarding the asteroid that eventually formed Chicxulub crater; Resulting theories as to how the dinosaurs were wiped out; Results of the study that have exonerated Chicxulub as the cause of the demise of the dinosaurs....
Update:With any scientific debate, there are details behind new research that may not be immediately apparent. As Ethan Siegel highlights in a recent ScienceBlogs article (What Wiped Out The Dinosaurs?, April 27th), the evidence for an asteroid impact wiping out the dinosaurs isoverwhelming. Just...
While there was never any threat of Dimorphos hitting Earth, it provided a safe target for testing technology that someday might help to protect Earth from a catastrophic collision with a killer asteroid, such as the one that wiped out the dinosaurs and 75 percent of plant and animal life ...
When an asteroid struck 66 million years ago and wiped out dinosaurs not related to birds and three-quarters of life on Earth, early ancestors of primates and marsupials were among the only tree-dwelling (arboreal) mammals that survived, according to... ...
Scientists have found asteroid impacts on the Moon millions of years ago coincided precisely with some of the largest meteorite impacts on Earth, such as the one that wiped out the dinosaurs. Additionally, the new research study also discovered that major impact events on Earth were not stand-al...
It's almost 40 years since scientists discovered what wiped out the dinosaurs: an asteroid hitting Earth near modern-day Mexico. That was it, or so we thought. A paper published today inSciencefurther supports an alternative hypothesis: thatcatastrophic eventsfollowing the impact could have helped...
The largest moon in our solar system may have been knocked off its axis and cracked like an egg four billion years ago by an asteroid bigger than the one that wiped out the dinosaurs on Earth at the end of the Cretaceous age. Space ...
Meteor Crater," which landed 50,000 years ago. The culprit was likely some 100 to 170 feet across, creating a blast big enough to destroy Kansas City. While thespace rockwasn't small, it wasn't nearly a "planet-killer" like the roughly six-mile-wide behemoth that wiped outmostdinosaurs...
Brandon Johnson, study coauthor and an associate professor at Purdue University, used a large computer program called a hydrocode to simulate the first 10 minutes of the Chicxulub impact, including the formation of the crater and the beginning of the tsunami. The asteroid that wiped...