Supermassive Black Holes 超大质量黑洞 - 8

In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou

神秘的月球 第1期

1972 was the year a great love affair ended. 一段美丽的爱情在1972年走到终点 The human race fell out of love with the moon. 人类对月亮的爱意荡然无存 It was a classic case of familiarity breeds contempt. 这是因了解而分开的

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【一起听英语】夜空

城市的兴起，带来了诸多问题，其中一个问题就是污染。我们再也不能像之前那样看到晚上星光熠熠的繁星点点了.... Neil: Hello, I'm Neil. Callum: And I'm Callum. Neil: And this is 6 Minute English from BBC Lear

Listen this way听力教程第三册-3

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拜登会见来访的约旦国王

WASHINGTON, April 25 (Xinhua) -- U.S. Vice President Joe Biden on Thursday met with visiting Jordanian King Abdullah II in Washington to discuss the Syrian crisis, the White House said in a statement. Hosting the king for breakfast at the Naval Obser

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[00:-1.00]evacuate warn eruption mount [00:-1.50]疏散 警告 爆发 山；峰 [00:-2.00]Montserrat minister warning observatory [00:-2.50]蒙特塞拉特岛 部长 警告 气象台 [00:-3.00]guarantee financial islander announce [00:-3.50]担保 财政

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MICHEL MARTIN, HOST: Tomorrow, dozens of competitors will take to the slopes at Mount Snow in Vermont for the annual world championship of jack jumping. No judgment - we never heard of it either. So Vermont Public Radio's Nina Keck went to find out w

美国国家公共电台 NPR Bill Of The Month: $43,208 For Repeat Surgery To Replace Broken Medical Device

DAVID GREENE, HOST: So here's a question - what do you do when a medical device fails? And when it fails, who pays for it - the manufacturer, the hospital? Or are you stuck with the bill? Well, Dr. Elisabeth Rosenthal from our partner Kaiser Health N

THIS IS AMERICA - Naval Observatory in Washington

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9个数字读懂古巴和美国

12:The different types of travel restrictions to be eased as a result of the restored ties, including family visits and official visits as well as journalistic and education work, according to The New York Times. Tourism, however, will reportedly rem

科学家宣布再次探测到引力波

Four months after the historic first-ever detection of gravitational waves, scientists said they have directly detected another gravitational wave washing over the Earth. 在引力波历史性的首次检测到四个月之后，科学家们近日表示

中国布局引力波探测

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

VOA常速英语2007年-Mt. Washington Observatory Goes to Weather Extr

By Paul Sisco 07 December 2007 The Mount Washington observatory in (the northeastern U.S. state of) New Hampshire is a non-profit, scientific and educational institution with a mission to advance understanding of the Earth's climate systems. It also

日全食、春分、超级月亮一次看个够

Friday, March 20, will see an astronomical triple play when a rare total solar eclipse occurs on the same day as the vernal equinox, and a supermoon makes an appearance.本周五（3月20日）将上演天文现象三合一：春分当天发生日全食

2006年VOA标准英语-Reopened Observatory Offers Hollywood View of t

By Mike O'Sullivan Los Angeles 05 December 2006 Visitors to Hollywood often hope to catch a glimpse of the stars on the silver screen. Now, they can also get a peek at the stars in the sky at the Griffith Observatory, a longtime Hollywood landmark.

伊斯兰国宣称要占领拉马迪

The Islamic State group on Sunday claimed to have seized the Iraqi provincial capital of Ramadi, giving the militants their largest victory this year after days of intense clashes. In Washington, the Pentagon refused to confirm the IS statement, sayi

Strong cold front to sweep China

Strong cold front to sweep China BEIJING, Oct. 14 (Xinhua) -- A strong cold front coming from northwest China's Xinjiang Uygur Autonomous Region will drop temperatures in most parts of China in the next three days, the country's national observatory

Cold front to sweep most of China

BEIJING, Feb. 15 (Xinhua) -- A strong cold front is expected to sweep most of China, dragging down temperatures by up to 14 degrees Celsius in some areas. The cold front will lower temperatures by 6 to 10 degrees Celsius in most parts of China during

Gale, hail to hit Beijing

BEIJING, July 28 (Xinhua) -- The observatory of Beijing on Saturday issued a blue alert for strong wind and hails in northeastern suburban region of the city. Strong wind, rains and hails are expected to hit northern Huairou District and Miyun County