call these objects meteors (流星) or “shooting stars”. They produce flashes of light...) or “shooting stars”. They produce flashes of light, and usually burn up before ……

forecast an intense flurry of meteors associated with the Leonid shower.The Leonids are minute dust particles shed by Comet Tempel-Tuttle. The meteors are called Leonids because they appear to come from ……

Night sky lights upThe Leonid meteor shower revisited our skies last week. Thespectacle(奇观) was the second-to-last chance to see the shower this century. In Asia, observers saw some 60 meteors per ……

to the Martian display, the August sky offers one of the best meteor showers of the year.The Perseid meteors... 75 meteors an hour.August is a good month for sky watchers. ……

these meteors burn up? You might think that the friction (摩擦) between the rocks and the atmosphere causes...流星为什么会发光发热？Have you ever seen meteors (流星)? They are rocks that fall to Earth from space. They burn ……

in the atmosphere, often leading to the meteors (流星) you see in the night sky. Bigger objects, as large... in the atmosphere, often leading to the meteors (流星) you see in the night sky. Bigger objects, as large ……

as they burn up.When meteors pass through the upper atmosphere, they burn as hot as the sun... entire lifetime. But even if we look up too late to witness a meteor shower above us, we still might ……

, 31, was getting ready for work when she looked out her window and saw a big burst of light in the sky. Suddenly she heard a loud explosion and the door to her balcony flew open. All of the car alarms ……

苍穹中谁的眼泪在飞？狮子座流星雨划破夜空。Shooting stars, streaks of light and flying rocks - did you see the famous... of November 19, shooting stars appeared in the sky from a point within the constellation of Leo (狮子 ……

陨石：突袭俄罗斯的“天外来客”。词数 240 建议阅读时间 5分钟SINCE ancient times, human beings have looked up at the night sky... it entered our atmosphere, and broke up about 20-30 miles (30-50 kilometers) above ground. The sky ……

Closing up during a fireClosing up during a fire树木会在大火中“屏住呼吸”树木会在大火中“屏住呼吸”When there’s a fire... hitting Earth. Luckily, it won’t hurt us. The dust burns (燃烧) on its way to Earth. So you see meteors ……

  测试见IV版    建议阅读时间    5分钟A fireball lit up the sky on the evening of Dec 15...’ comments on Sina Weibo.A fireball lit up the sky on the evening of Dec 15 in Zhejiang. Instead ……

Pigs can't look up in the sky. ……

birds, meteors and reflections of light from the sun or moon. So why is it so easy for humans..., helicopters, satellites, large birds, meteors and reflections of light from the sun or moon. So why is it so ……

meteors东京奥运会或上演流星雨To welcome the 2020 Tokyo Summer Olympics, Japanese company ALE Co is going to make... shower is made up of small metallic (金属的) balls. When the balls fall to Earth, they will burn up ……