happening?Keys1. An asteroid may hit the earth.2. By a comparison between the energy that may... into the atmosphere.An Apophis hit is the worst near-earth possibility in recorded history. The asteroid has ……

is to learn how the Earth could protect itself from giant asteroids that might hit us. With the Russian meteorites last week, and the asteroid 2012 DA14 coming so close to the Earth, scientists are coming up ……

PANIC struck last week when some people predicted that an asteroid (小行星) could be about to hit the Earth.The troublemaker is asteroid 2012 DA14, a small near-Earth asteroid. On February 15, 2013 ……

to 1. He thinks the asteroid may hit a man-made (人造的) satellite in 2029.This would change Apophis... will be hit by a large asteroid in 2036 are wrong. NASA, however, says its figures are right ……

a movie.A. To make a movie.B. To break up the asteroid.B. To break up the asteroid.C. To avoid Earth being hit in the future.C. To avoid Earth being hit in the future.D. To find out where the asteroid ……

asteroid could also help scientists plan for ways to protect Earth if an asteroid hit it.Earlier...NASA (美国国家航空航天局) scientists are making plans to visit an asteroid (小行星) before 2025 ……

Earth from being hit by asteroids.On Sept 26, NASA’s 570-kilogram spacecraft crashed into an asteroid... on purpose美国航天器成功撞击小行星！美国航天器成功撞击小行星！A spacecraft (航天器) successfully hit an asteroid (小行 ……

国家航空航天局), it could hit Earth on May 6, 2022. If this is true, it will be a big problem. Scientists say it would... as the Great Pyramid of Giza (吉萨金字塔) in Egypt. According to NASA (美国国家航空航天局), it could hit Earth on May 6 ……

asteroid hit a particular place on Earth.Users can type in the size of an asteroid, its speed, what... then calculates what the effects of the asteroid’s hit would be, whether there would be a fireball ……

, suggesting that Earth was hit by a massive asteroid.A richer iridium anomaly also has been found.... These suggest that a massive space rock hit the Earth and killed off large reptiles that ruled ……

to our planet. Can they hit Earth? To protect Earth from them, the US sent DART into space... from Earth.Asteroids (小行星) pass Earth often. Some of them can be close to our planet. Can they hit ……

recovering from the hit.Will another huge asteroid hit our Earth? Scientists say we don’t have... to this conclusion. They think a huge asteroid hit what is now Mexico about 65 million years ago. It measured around ……

."There's no possibility that this asteroid could hit Earth because our gravityrepels(抵制) it," said Don Yeomans, another... the sameorbitwith Earth. Sometimes, as the two race around the sun, the asteroid is ahead, sometimes it's behind ……

科学家为人们揭开恐龙诞生之谜。AN asteroid (小行星) strike may have killed off dinosaurs millions of years ago... that another, earlier asteroid strike could have created conditions perfect for dinosaurs to rule the Earth ……

小行星来袭该如何应对？SIXTY-FIVE million years ago, an asteroid (小行星) that crashed on Earth led.... Two objects from space – a meteor (陨石) and an asteroid called 2012 DA14 – visited Earth’s atmosphere ……