On Saturday, astronomers discovered a new asteroid, just a few hoursbefore it almost hit us. The asteroid is called 2016 QA2, and it missed the Earth by less than a quarter of the distance to the moon. That puts it about three times as far away from Earth as our farthest satellites....
Actually, That Asteroid Did Not Nearly Hit EarthAchenbach, Joel
About 66 million years ago, an asteroid(小行星)hit Earth. Thick clouds covered the sky and the sunlight. It became much colder. Plants died and new ones didn't grow very well. Most dinosaurs(恐龙) died out, but one group survived(幸存). These were the avian(鸟类的)dinosaurs-birds.So ...
【题目】 An asteroid(小行星) is about to hit the earth in June; iPhone 6 is going to be released in July.. We read rumors every day on the Internet. With the help of social media, rumors-no matter whether they are true or false-spread like wildfire.Now, an Internet group of ...
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An asteroid(小行星) is about to hit the earth in June; iPhone 6 is going to be released in July... We read rumors every day on the Internet. With the help of social media, rumors-no matter whether they are true or false-spread like wildfire. Now, an Internet group of researchers ...
The most devastating asteroid to hit Earth - Sean P. S. Gulick: Dig into what happened after the Chicxulub asteroid hit the Earth, and how it caused a mass extinction- including dinosaurs.
An asteroid some six miles (10 kilometers) wide or bigger smashed into Earth and created the Vredefort Crater, in present-day South Africa, some 2 billion years ago, long before even thedinosaursevolved. At the time, researchers estimate the impact crater was a whopping 112 to 186 miles (...
So where did all of our water come from Scientists think that it might have arrived in the form of ice by an asteroid (小行星) from outer space that hit our planet. But this idea has not been confirmed (证明) because there is very little related evidence(相关证据) to be studied.What...
Dinosaurs were wiped out by a huge asteroid(小行星)that hit the Earth 65million years ago with the force of a billion atomic bombs,scientists said,hoping to (1)___ an ageold debate to (2)___ once and for all. The(3)___comes from an international group of experts who (4)___ ...