The Milky Way is our home galaxy, the spot where the Earth resides. We are not anywhere near the center —NASAsays we’re roughly 165 quadrillion miles from the galaxy’s black hole, for example — which demonstrates just how darn big the galaxy is. So how big is it, and how does i...
How far is the Moon in light years from Earth? How many light years away is the Andromeda Galaxy? How many AU in a light year? How many miles in a light year? How many light minutes are there in one astronomical unit? How fast does a black hole travel?
How far is the Sun from Earth? Sun: The Sun lies at the center of the Earth's solar system. It is a yellow star that is situated in the Milky Way galaxy. The sun is approximately 4.6 billion years old, just slightly older than the Earth, which is 4.5 billion years old. ...
We'll explore them in the next section. Parallels and Meridians Using degrees, minutes and seconds, meridians measure how far east or west a location is from the Prime Meridian. Parallels measure how far north or south a location is from the equator. Map Projections A cylindrical map ...
A light year is the 13 light travels in one year, or about 6 million miles. The 14 stars are billions of light years away. Some are 15 far away that if they were to blow up today, their lights would continue to be seen from the earth 16 a million years! Our sun is part of a...
Size comparison between the Earth and the Moon. Our local star, however, is also unimaginably huge. At highway speed, it would take almost two years to drive from one side to the other. Compared toEarth, the Sun is a monster; it’s a giant nuclear fusion reactor that has enough hydr...
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How the Universe Works《了解宇宙是如何运行的(2010)》第六季第六集完整中英文对照剧本.docx,我们银河系的命运悬而未决 The fate of our galaxy hangs in the balance. 银河系正在消亡,而我们不知道是什么原因 The Milky Way is dying, and we dont know why. 我们的星
Astronomers use astronomical units to describe how far away objects in space are, mostly in relation to the sun or other stars. For instance, Jupiter is about 5.2 AU from the sun, according to NASA. Because Earth's orbit around the sun is elliptical (oval-shaped), it isn't always the ...
"To obtain an idea of the size of a light-year, take the circumference of the Earth (24,900 miles), lay it out in a straight line, multiply the length of the line by 7.5 (the corresponding distance is one light-second), then place 31.6 million similar lines end to end," NASA's ...