文章列表

• 1.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—11
• Once theyve caught the light of a dying star with their state of our telescopes. The detective work can begin. We collect that light and we analyze it...
• 2.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—10
• To understand how these calamities occur, astronomers need to catch a massive star in its death throes. Astronomers are like detectives. We have to fi...
• 3.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—9
• Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing i...
• 4.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—8
• Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing i...
• 5.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—7
• 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, a...
• 6.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—6
• Look closer and there is something strange about this gas and dust. There're patches where it appears to glow. These bright glowing clouds are called ...
• 7.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—5
• We are taking a ride through the Milky Way. First, we are traveling to a place where stars are born. Even at the speed of light, 196,000 miles a secon...
• 8.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—4
• 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 satellit...
• 9.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—3
• Now, of course, I can't show you a picture of the galaxy on our screen. We can't fly above the galaxy and take a picture of it, and show you. We're st...
• 10.英语听力：自然百科 穿越银河系的旅行 Through Milky Way—2
• It's really a wonderful time to be an astronomer, especially in studies of Milk Way. Were undergoing something for revolution. In fact, we can take yo...