Asteroid Day on Sunday commemorates an even bigger impact, the 1908 Tunguska event ... energy in the hundreds of megaton approaching a gigaton,” Peter Brown of Canada’s Western University ...

NASA said that an asteroid previously believed to be destined for Earth is now more likely to make impact with the moon.

An international team is currently closely tracking the near-Earth asteroid 2024 YR4. The impact probability estimates for the year 2032 has been reduced from a peak of 3 percent to below 0.001 ...