The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

which was the likely impact site of the 6-mile-wide asteroid that 65 million years ago caused the extinction of not only the ...

The most infamous asteroid impact occurred 66 million years ago, when a six-mile-wide space rock triggered a global winter, wiping out the dinosaurs and 75% of all species. By contrast ...

The 700–1,300 feet-wide space rock deformed rocks more than six miles from the impact site when it hit 600 million years ago.

"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University ...

At approximately 40 to 90 meters (130-300 feet) wide, the asteroid is far smaller than the 10-kilometer (6-mile) asteroid that wiped out the dinosaurs but still large enough to devastate a major city.

the point here is that the dinosaurs were almost certainly wiped out by a nearly 6-mile-wide asteroid that struck the Earth with the destructive power of billions of Hiroshima-scale nuclear bombs, ...

NASA data released Tuesday said there is now a 3.1 percent chance a "city-destroying" asteroid could smash into Earth in 2032. The asteroid named 2024 YR4 is being carefully monitored by the ...

New observations of a small asteroid discovered in December have led astronomers to conclude that the chances of it striking Earth are almost zero after earlier data had indicated a higher risk of a ...

"City killer" category The most infamous asteroid impact occurred 66 million years ago, when a six-mile-wide space rock triggered a global winter, wiping out the dinosaurs and 75% of all species.

Unlike the six-mile-wide (10-kilometer-wide) asteroid that wiped out the dinosaurs 66 million years ago, 2024 YR4 is classified as a "city killer" -- not a global catastrophe, but still capable of ...

Unlike the six-mile-wide (10-kilometer-wide) asteroid that wiped out the dinosaurs 66 million years ago, 2024 YR4 is classified as a "city killer" — not a global catastrophe, but still capable ...