Brown agrees that the true hit rate for asteroids of that size is probably more frequent than past estimates, but he's cautious about the B612 Foundation's once-a-century number.

Scientists call threats from large asteroids "low-probability, very high-consequence events." Regardless of the odds, we can't afford to be without a plan to deal with them.

Asteroid Day reminds us of space rocks' power. Some asteroids hit Earth hard. One exploded over Chelyabinsk in 2013, injuring ...

Three city-killing asteroids that could strike Earth without warning in weeks are currently hiding behind our nearest neighbouring planet, boffins fear. The impact from any of the space rocks ...

Our nearest planetary neighbor is hiding potentially deadly asteroids—and we might not see them till it’s too late. Breaking News Intern At least three city-killing asteroids are lurking ...

The threat of deadly asteroids hitting our planet is real, according to Asteroid Day, an organization hoping to stop a future catastrophe. Scientists worldwide are observing Asteroid Day on ...

In the glare of the sun, an unknown number of near-Earth asteroids move on unseen orbits. ... Once we know about them, deadly asteroids can either be monitored and deflected if needed, ...

The strike rate for such large space rocks, properly known as asteroids, has been estimated at once every 3,000 years, but the B612 Foundation, a planetary defense group, says the true figure ...

Asteroids Apocalyptic asteroid strike that could wipe out humanity is ‘only a matter of time’, top scientist warns By Harry Pettit , Senior Digital Technology and Science Reporter The Sun ...

The space rock would have to be pretty large to kill us all.. Scientists think the asteroid that wiped out the dinosaurs was about 7.5 miles wide. If an asteroid that size hit Earth today, things ...

Those in the hypothetical scenarios tend to focus on more deadly asteroids. In 2019, for instance, a 200 foot fictional asteroid destroyed New York City after the assembled experts failed to stop it.

The 10-ton meteor that streaked into Earth's atmosphere at 40,000 mph and exploded above the Russian city of Chelyabinsk was a reminder that the universe is not such a hospitable place.