Some of the faintest objects ever observed suggest that small galaxies get the credit for clearing the ‘fog’ pervading the early cosmos.
"And suddenly, as they're outside of all the light sources in our solar system, they realize we don't need as many galaxies as we thought," Gay said. "And so their estimates put us at, like, 200 billion, maybe even 100 billion galaxies in the visible universe. "So somewhere between...
How much do you know about the universe? In the huge universe, there is the Galaxy and many other galaxies. In the Galaxy, there is the Solar System and lots of other stars. In the Solar System, there is the sun, the earth and seven other planets. As we know, the eight planets ...
According to astronomers, there are probably more than 170 billion galaxies in the observable Universe, stretching out into a region of space 13.8 billion light-years away from us in all directions. And so, if you multiply the number of stars in our galaxy by the number of galaxies in the ...
46How much do you know about the universe?In the huge universe there is the Galaxy andmany other galaxies.In the Galaxy, there is theSolar System and lots of other stars.In theSolar System,there is the sun, the earth andseven other planets. As we know, the eightplanets go around their...
Note that Andromeda is NOT the closest galaxy to us; there are actually several minor galaxies that lie much closer to us than the Andromeda Galaxy, but the latter is the closest large spiral galaxy. Now, think about this for a moment—Andromeda is 2.5 million light-years away...
阅读理解。 Do you know how many stars there are in the universe? The answer is WANY! Our sun is one of about 100 billion stars in our galaxy the Milky Way. But the Milky Way is just one of billions of galaxies that we know about!
aBut scientists have discovered many othergalaxies in the universe. They are a long way away and their light has travelled for many years to reach us. it ishard to understand how large the universe is. 但科学家在宇宙发现了许多othergalaxies。 他们是长的路,并且他们的光移动许多年到达我们。
So the baby planet may seem far, but compared with many other distant stars and galaxies in our universe, it’s actually relatively close. Our galaxy, the Milky Way, is 100,000 light years wide. Before now, astronomers thought planets had to be very close to their stars during formation....
There are about 100,000,000,000 stars in the Milky Way Galaxy.Some of these stars are much larger than the Sun and others are much smaller. There are trillions of galaxies in the universe. Dwarf galaxies (系) may have as few as ten million stars, and giant galaxies (巨星系) may...