根据文中“However, most scientists believe that one large asteroid hit the Earth and killed all the dinosaurs about 65 million years ago.”可知,作者写6500万年前的恐龙是来证明 Apophis 有多危险。故选C。 (2)题详解: 细节理解题。根据文中“It wil l probably miss (未击中) the Earth in 2029...
"We can see orders of magnitude fainter than you would be able to with your naked eye," Moskovitz explained. 2024 YR4, "city killer" asteroid Since December, Moskovitz had the Lowell Discovery Telescope trained on the2024 YR4 asteroid. Scientists at one point projected it had about a 3%...
How large asteroids must be to destroy a city, state, country, or the planetDave MosherRob LudacerKevin Reilly
That is how old a you will be when a large asteroid(小行星). (C called Apophis, comes very close to our planet.Asteroids move around the sun in space and y sometimes come close to the earth and even hit b it. Most asteroids are very small. If you are lucky. 为1you can sometimes...
Let’s break down the idea of a “peak” during a meteor shower a little bit more. Basically, when a meteor shower occurs, the Earth passes through a stream of debris left by a comet or asteroid. In the case of the Draconids, the debris that forms the Draconids meteor shower is left...
T hat i s how old you will be when a large asteroid(小行星),called Apophis, comes very close t o our planet. Asteroids move around the Sun i n space and sometimes come close to the Eart h and even hit it. Most asteroids are very sm all. If you are lucky, you can sometimes ...
Claire Weisz, founder of W X Y + architecture + urban design, walks us through three different street redesigns that her team has done in New York City. Claire explains why they made the changes they made, and what ultimately makes for a "better" street.
The meteor shower appears annually when Earth passes through the point where its orbital path intersects with a stream of debris cast off from the asteroid 3200 Phaeton. The debris hurtles by at a rate of 80,000 miles (130,000 kilometers) per hour, vaporizing as the Geminid showers. ...
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celestial object’s close orbit around the sun causes it to shed particles due to the extreme heat, leaving a stream of meteors around the entire orbit, according to Lunsford. During the first two weeks of December, Earth passes close to the asteroid’s orbit, allowing us to see the ...