It was formed slightly over 66 million years ago when an asteroid, about ten kilometers (six miles) in diameter, struck Earth. The crater is estimated to be 200 kilometers (120 miles) in diameter and 1 kilometer (0.62 miles) in depth.

2019年9月9日 · One of the greatest scars on our planet is hidden beneath the Yucatán Peninsula and the Gulf of Mexico. The buried crater, over 90 miles in diameter, was created when a massive asteroid struck...

2024年10月22日 · A giant meteorite first discovered in 2014 caused a tsunami bigger than any in known human history and may have sparked life, scientists reveal.

2024年9月23日 · New close-up images reveal the surprising snowman shape of "potentially hazardous" asteroid 2024 ON, which tumbled safely past our planet on Sept. 17.

2.02 billion years ago, a meteorite or asteroid that was 6.2 to 9.3 miles (10 to 15 km) in diameter crashed and it blasted out a crater 185 miles (300 km) wide. Vredefort is one of the very few...

2024年10月21日 · S2 meteorite: What happened when a rock as big as London hit Earth? A huge meteorite first discovered in 2014 caused a tsunami bigger than any in known human history and boiled the oceans,...

The Chelyabinsk meteor (Russian: Челябинский метеорит, romanised: Chelyabinskiy meteorit) was a superbolide that entered Earth's atmosphere over the southern Ural region in Russia on 15 February 2013 at about 09:20 YEKT (03:20 UTC).

2024年2月6日 · NASA's Jet Propulsion Laboratory has spotted a giant "city killer" asteroid flying toward Earth. And this afternoon, it will reach its closest approach to our planet, about 1.77 million miles away.

2024年10月21日 · Billions of years ago, long before anything resembling life as we know it existed, meteorites frequently pummeled the planet. One such space rock crashed down about 3.26 billion years ago, and even today, it’s revealing secrets about Earth’s past.

2024年10月25日 · Roughly 3.26 billion years ago, Earth had a “what doesn’t kill you makes you stronger” moment. A monster meteor dubbed “S2”—roughly the size of four Mount Everests and up to 200 times larger...

It is the largest known intact meteorite (as a single piece) [2] and about twice as massive as the largest fragment of either the Cape York meteorite 's 31-tonne Ahnighito kept in the American Museum of Natural History or the Campo del Cielo 's 31-tonne Gancedo in Argentina.

2024年8月16日 · The Chicxulub event – the giant impact that ended the reign of non-avian dinosaurs, clearing the way for mammalian life to rise – was triggered by an asteroid from a region of the Solar System out past the orbit of Jupiter, the cold, dark outer limits, far …

2024年5月10日 · In just under half a decade, a 1,000-foot-wide (305-meter-wide) asteroid named after the Egyptian god of chaos and destruction, Apophis, will pass within 30,000 miles (48,300...

2025年1月21日 · Little did he know, at that very moment, that a meteor hurtling toward Earth at 60,000 kilometers per hour (37,282 mph) was minutes away from striking the exact spot he stood on.

2024年9月11日 · There is a slim but overlooked risk that the "God of Chaos" asteroid Apophis could hit Earth as it makes a super close approach to our planet in 2029, a new study reveals. The odds of such a...

2021年2月15日 · The Chicxulub impactor, as it’s known, was a plummeting asteroid or comet that left behind a crater off the coast of Mexico that spans 93 miles and goes 12 miles deep. Its devastating impact brought the reign of the dinosaurs to an abrupt and calamitous end, scientists say, by triggering their sudden mass extinction, along with the end of ...

2024年10月22日 · It is estimated that “giant impactors,” greater than 6.2 miles (10 kilometers) across, pummeled the planet at least every 15 million years, according to the study authors, meaning that at least...

2024年6月27日 · Shorty after 4 p.m. ET today (June 27), the mountain-size asteroid 2011 UL21 will come within 5 million miles of Earth, making it one of the largest space rocks to come that close to our...

2017年11月9日 · A giant meteor that struck the Yucatán Peninsula 66 million years ago is the leading explanation for the demise of the dinosaurs.

2022年8月16日 · — This long-lost asteroid impact was so big its debris left more than 30 craters — Scientists uncover the largest crater on Earth under 100,000 years old

2024年12月31日 · Meteor showers occur when Earth passes through giant streams of debris from comets or asteroids. When these bits of rock and cosmic dust hit the planet’s atmosphere, they burn up and streak ...

Research indicates that a giant asteroid, approximately 100 kilometers in diameter, could render Earth inhospitable, leading to the extinction of many species, including humans. The probability of ...

4 天之前 · The Minor Planet Center announced the discovery of the presumed asteroid on January 2 - even giving it an official name of 2018 CN41 - before issuing an editorial change hours later saying the asteroid had been deleted from its records ... SpaceX used the launch tower’s giant mechanical arms to catch the returning booster, a feat achieved ...

2024年11月3日 · Introduction. Most asteroids can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt. Asteroids range in size from Vesta – the largest asteroid at about 329 miles (530 kilometers) in diameter – to bodies that are less than 33 feet (10 meters) across. The total mass of all the asteroids combined is less than that of Earth’s Moon.