If it points the camera forward, at first it sees only black. But as it moves toward the heart of the black hole, it encounters the most bizarre place in the universe. A black hole in massive gravity holds everything down to an unimaginably small poi

发表于:2018-12-07 / 阅读(213) / 评论(0) 分类 访谈录2010

The Hubble telescope has given us spectacular pictures from space, but theyre not detailed enough to help us in our search for life in the trillions of galaxies across the universe. If tens of percent of stars have planets that could resemble the ear

发表于:2018-12-08 / 阅读(52) / 评论(0) 分类 VOA标准英语2018年(十一月)

EXPLORATIONS - Edwin Hubble Changed Our Ideas About the Universe and Its Birth EXPLORATIONS -- a program in Special English by the Voice of America. Today, Richard Rael and Tony Riggs tell the story of American astronomer Edwin Hubble. He changed our

发表于:2018-12-16 / 阅读(43) / 评论(0) 分类 2012年VOA慢速英语(十一)月

Pythons Unlock Human Heart Health Secrets Studying snakes might seem like an unlikely way to help people with heart disease, but a pythons remarkable ability to quickly enlarge its heart during digestion has Colorado medical researchers looking towar

发表于:2018-12-16 / 阅读(47) / 评论(0) 分类 VOA标准英语2011年(十一月)

Winking Star Six Centuries Ago Explained 揭秘600年前那颗一闪即逝的恒星 On March 11, 1437, Korean royal astronomers noticed something out of the ordinary in the night sky. There was a brand new star they'd never seen before, between two o

发表于:2018-12-24 / 阅读(46) / 评论(0) 分类 2017年Scientific American(九)月

I want you by my side 我想你在我身边 So that I never feel along again 所以,我从不感到重新 They've always be so kind 他们一直是这样 But now they've brought you away from here 但是现在他们已经带你离开这里 I hope t

发表于:2019-01-10 / 阅读(47) / 评论(0) 分类 2015最新精选英文歌曲

DAVID GREENE, HOST: So here's a way to go to the museum without actually going to the museum. Send a text message to the San Francisco Museum of Modern Art, and the museum will send back an image that matches your mood. STEVE INSKEEP, HOST: It really

发表于:2019-01-16 / 阅读(37) / 评论(0) 分类 2017年NPR美国国家公共电台7月

This is Scientific Americans 60-Second Science. I am Christopher itagliata. Got a minute? How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Mil

发表于:2019-01-20 / 阅读(73) / 评论(0) 分类 2014年Scientific American(八)月

How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th

发表于:2019-01-20 / 阅读(62) / 评论(0) 分类 2014年Scientific American(八)月

How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th

发表于:2019-01-20 / 阅读(71) / 评论(0) 分类 2014年Scientific American(八)月

Its extremely frustrating because this region, this time period holds within it, in some sense, the rose headstone of / galaxy formation. But there are clues as to what was happening inside those dense hydrogen clouds. Look back even further in time

发表于:2019-01-22 / 阅读(46) / 评论(0) 分类 自然百科2011年

Its a stunning location, but its also mysterious. These stars are not just close together. They are on the move at enormous speeds. Going to the heart of a galaxy might not be the similar to going to an amusement park. The rides are some similar to h

发表于:2019-01-22 / 阅读(207) / 评论(0) 分类 自然百科2011年

Each tag is whipping around the center of the galaxy, the particular, the most striking thing you will notice is the motion of SO2.So SO2 goes on an incredible roller-coaster ride. It comes whipping around and then back out. Something with tremendous

发表于:2019-01-22 / 阅读(52) / 评论(0) 分类 自然百科2011年

By comparing the detailed images, Hubble has taken another spiral galaxy. With the best images of our own taken from the ground, and by using satellites to measure the distance and density of stars in different directions, astronomers have been able

发表于:2019-01-22 / 阅读(57) / 评论(0) 分类 自然百科2011年

This is a picture of the Orion Nebula in visible light. We can see all of the gas here located in front of what we know are stars in the background, and we want to be able to look inside this nebula/ and see the stars. In infrared light in this image

发表于:2019-01-22 / 阅读(58) / 评论(0) 分类 自然百科2011年

We are at a foundry here, and they are pouring molten iron from all machinery. And they are going to make parts for new machines out of that iron, so they are recycling yet, but all that iron was created and ejected into the cosmos by gigantic stars

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2011年

The Fermi Paradox Back in 1950, the Nobel prize-winning physicist Enrico Fermi was having lunch with friends. Conversation turned to the possibility of extraterrestrial life. According to the popular story, Fermi fell silent for a moment and then ask

发表于:2019-01-26 / 阅读(65) / 评论(0) 分类 英语听力文摘 English Digest

Why Alien s Wont Eat Us Are alien s going to eat us? Thats more of a science fiction question. But science does have something to say here, and sometimes purely imaginative questions are great tools for helping us think about how the real world works

发表于:2019-02-16 / 阅读(44) / 评论(0) 分类 英语听力文摘 English Digest

Jack opened his eyes. He was wearing his ownclothes and his sneakers. The cloth sack had turnedback into his backpack. Welcome home, Master Librarians, said Morgan. She stood in the tree house, smiling at them. Hi! said Annie. We brought you the anci

发表于:2019-02-17 / 阅读(69) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

What do the names Whirlpool, Black Eye, and Sombrero all have in common? Are they all appliance brands, names of galaxies, special ops forces, or oceanic reefs? These are all the names of galaxies, massive concentration of stars. AZUZ: Of course, the

发表于:2019-03-04 / 阅读(146) / 评论(0) 分类 CNN美国有线新闻2019年1月