New simulations reveal that the climate, atmospheric chemistry and even global photosynthesis would be dramatically disrupted ...

Another study estimated the potential damage that would be caused ... the researchers estimated that an impact by a Bennu-sized asteroid would inject 100-400 million tons of dust into the ...

Another study estimated the potential damage that would be caused if an asteroid ... Aside from the immediate devastation, researchers estimated an impact by a Bennu-sized asteroid would inject 100 ...

Another study estimated the potential damage that would be caused ... researchers estimated an impact by a Bennu-sized asteroid would inject 100 million to 400 million tonnes of dust into the ...

"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University Belfast and a member of one of Nasa's sky surveys that searches and tracks ...

"The really big ones, like the 10km (6.21 mile) [wide] or so asteroid ... reaches impact." While the Earth's atmosphere acts as a protective barrier, that still doesn't prevent all damage.

A collision with a medium-size asteroid ... of Bennu colliding with Earth is similar to the probability of flipping a coin 11 times in a row with the same outcome. But the expected damage would ...

The threat from space rock 2024 YR4 has surpassed that of Apophis, an asteroid feared by scientists 20 years ago. The danger remains low, but experts are estimating the damage that could be done.