Our Milky Way galaxy looksa little like a pinwheel. It is a spiral galaxy, about 100,000 light years across, with a bulge in the center (called the nuclear bulge) that contains the nucleus, a wide, flat disk with distinct spiral arms, and a surrounding halo of stars. What is the eas...
天文学,天文观测,银河系,黑洞,星系中心Astronomers have gotten their deepest glimpse into the heart of our Milky Way Galaxy, peering closer to the supermassive black hole at the Galaxy' s core than ever before.VIP中国科学院院刊(英文版)
The sun is the closest star to the earth. It is at least 4. 5 billion years old. Itis a_16_ of the Milky Way Galaxy(银河系). The sunis important because it gives the 17_ heat and light. It is about 150 million kilometres 18 the earth. On the sun's surface, we cansee st...
阅读理解The sun is the closest star to the earth. It is at least 4. 5 billion years old. It is a member of theMilky Way Galaxy. The sun is important because it gives the earth heat and daylight. It is 149 millionkilometers from the earth. On the sun's surface, we can see stron...
The Andromeda galaxy is the most distant object in the sky that you can see with your unaided eye. It's also on a collision course with our Milky Way.
the brightest of which gained proper names. Astronomers have assembled star catalogues that identify the known stars and provide standardized stellar designations. However, most of the stars in the Universe, including all stars outside our galaxy, the Milky Way, are invisible to the naked eye fro...
So far, there have been a number of theories as to which planetary bodies may have an atmosphere that can support such life and therefore deserve closer attention. As for places within our own Milky Way Galaxy, it has been assumed over the decades that Mars and Venus, as well as some ...
[04:03.04]While dormant, they give off nothing and are difficult to identify. [04:09.12]The scientists said it remains unclear [04:13.68]how the black hole formed in our Milky Way galaxy. [04:18.12]Examinations of data ...
trivia about this star: it was the location of an epic battle on the television series "Star Trek: The Next Generation," where the cyborg-human Borg race and the Federation fought for control of the galaxy. Most Trekkies know the name of this star and what it means to the Trekiverse....
but this is the closest that we know,” says Heida. It is thought that there are about 100 million small black holes in the Milky Way, but we have found fewer than 100. If black holes were spread evenly in the galaxy, the closest should be just 30 to 40 light years away, she says...