4 天之前 · Why asteroid 2024 YR4 is unlikely to hit Earth in 2032. How an ancient asteroid strike carved out 2 grand canyons on the moon. Newly spotted asteroid has a tiny chance of hitting Earth in 2032. Discovered in December, the asteroid is an estimated 130 feet to 300 feet (40 meters to 90 meters) across, and swings our way every four years. ...

Damage to trees caused by the Tunguska event. The object, just 50–80 metres (150–240 feet) across, exploded 6–10 km (4–6 miles) above the surface, shattering windows hundreds of km away. An impact event is a collision between astronomical objects causing measurable effects. [1] .

2025年2月19日 · Initial projections gave the asteroid little more than a 1% chance of impacting Earth on Dec. 22, 2032. Those odds have steadily increased since then and now stand at a record 3.1%.

2025年2月20日 · A space rock briefly set an ominous record this week. On February 18, the impact probability of asteroid 2024 YR4 hitting Earth in late 2032 reached the highest ever documented by NASA for an ...

2025年2月13日 · Asteroid 2024 YR4, measuring approximately 40 to 100 meters wide, will pass very close to Earth in December 2032—and might even strike the planet. Because of its size, speed, and the possibility ...

2025年2月12日 · Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a football field as they try to determine how likely it is to strike Earth ...

2023年12月10日 · Here is a list of the top 10 meteorite strikes to ever crash into Earth. Learn about some of the biggest, most famous meteorite strikes.

2025年1月17日 · While cameras have captured meteors streaking through the sky, it’s rare to capture the sound of a complete meteorite strike on video. The space rock, officially registered Monday, was named Charlottetown after the city on Prince Edward Island in …

2025年2月14日 · When a meteoroid survives its trip through the atmosphere and hits the ground, it’s called a meteorite. Meteorites typically range between the size of a pebble and a fist. Meteoroids are space rocks that range in size from dust grains to small asteroids.

2023年2月16日 · When the object struck Earth (making it a meteorite), it became just the seventh falling space rock calculated in advance to hit our planet — and the third such object found in the past 12...