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Scientists have long believed that a star explodes when it reaches the end of its life. This explosion is called a supernova. NASA, the American space agency, describes a supernova as the largest explosion that takes place in space. Recently, a team

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SSS 2010-10-29

This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? If there's a line in Vegas on the odds of life on another planet, now might be a good time to place a wager. A study in the journal Science examined 166 Sun-sized star

SSS 2009-08-26

Still have some vacation time to burn, but tired of reading bad novels on the beach? Try a book written especially for people whod rather go to the planetarium than to Planet Hollywood. Its called The Geek Atlas: 128 Places Where Science and Technolo

CCTV9英语新闻：Cold wave hits china

China's weather observatory has issued a blue alert for a cold wave in the coming two days that will sweep central and east China. The National Meteorological Center forecasts sharp temperature drops of up to 10 degrees Celsius and heavy wind to Inne

SSS 2010-11-05

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Five very old galaxies are now known to astrophysicists, thanks to Albert Einstein. A century ago, Einstein predicted an effect called cosmic gravitational lensing. Pictur

AS IT IS 2016-02-22 Despite Talks, Bombs in Syria Kill 60

AS IT IS 2016-02-22 Despite Talks, Bombs in Syria Kill 60 Despite a cease-fire, at least 60 people were killed in Syria in two attacks Sunday. A double bombing in Homs early Sunday killed up to 60 people. Later, a series of attacks hit Sayeda Zeinab,

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BBC news with Stewart Macintosh. The Russian military says air raids on a Syrian army position in northeastern Syria have killed dozens of soldiers. He said that US-led coalition planes have targeted the airport near the town of Dayr Az Zawr, killing

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Tekapo is a special place. This small town has a big observatory at Mount John, 1000m above the town. It has six telescopes including New Zealands biggest telescope with a diameter of 1.8m, built with Japanese money. The observatory is operated by th

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2.WELCOME TO THE SOLAR SYSTEM 2.欢迎来到太阳系 Astronomers these days can do the most amazing things. If someone struck a match on the Moon, they could spot the flare. From the tiniest throbs and wobbles of distant stars they can infer the siz

Typhoon Son-Tinh brings gales, rains to S China

Typhoon Son-Tinh brings gales, rains to S China HAIKOU, Oct. 28 (Xinhua) -- More than 80,000 people in south China's Hainan Province have been relocated following the arrival of Typhoon Son-Tinh, which has brought gales and downpours to the region si

CCTV9英语新闻：台风肆虐香港

The Hong Kong Observatory has lowered the storm signal from No 8 to 3 this afternoon as Typhoon Utor started to move away from the city. 肆虐香港的台风尤特今天下午开始从香港撤离，气象局已经将风暴警报从8级降低到3级。

美国宇航局时隔两年找回失联太阳观测卫星

After losing communication with a space probe two years ago, NASA says it has reestablished contact. 在和一颗卫星失联长达两年之后，美国宇航局日前宣布，已和它重新取得了联系。 NASA said it lost contact with the Solar

China again issues alert for rainstorm in south

BEIJING, May 11 (Xinhua) -- China's national observatory on Friday issued a blue alert for a new round of rainstorms expected to hit the country's southern regions over next three days. From Saturday to Monday, heavy rains are likely to fall in most

China rainstorms leave 8 dead, affect millions

NANNING, June 25 (Xinhua) -- Eight people in southern China's Guangxi Zhuang autonomous region have been killed by rainstorms that have wrought havoc in many parts of the country over the last few days, authorities said on Monday. As of Monday evenin

Typhoon Nesat Made Landfall in Eastern Hainan

Typhoon Nesat has now made landfall in Wenchang city in Hainan province, prompting some 58,000 people to evacuate in eastern Hainan and fishing boats to return to harbor in Guangdong and Guangxi. The typhoon also forced a series of suspensions in pub

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Part 4. Language study and language appreciation. Listen to the following statements you have learned in the previous and present units. Pay special attention to the parts in bold part. Learn to appreciate and use the language. 1. to reduce the sprea

万物简史 第328期:美丽而危险(11)

Evacuating Yellowstone would never be easy. 撤离黄石公园不会是一件容易的事。 The park gets some three million visitors a year, mostly in the three peak months of summer. 公园每年吸引着大约300万名游客，主要是在夏季3个

夏说英语新闻晨读 第148期:另一个地球

本期内容： A multinational team of astronomers working at the European Southern Observatory in Chile discovered an Earth-sized planet in orbit around a star four light-years away. Proxima Centauri b is a bit bigger than Earth and orbits within i

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Parallax is a phenomenon by which we can judge the distance to things just by looking at them. Astronomers use parallax to calculate the distance to stars. Do you need a gigantic computer-based observatory to use it? Not at all. Your finger will do n