Astronomers know, however, that the distant Universe should be brimming with pairs of supermassive black holes embedded within merging galaxies. The first hints of such a system were found in data from theNASA/ESAHubble Space Telescope, which revealed two closely aligned pinpoints of light in the ...
. He4that nebulae were galaxies themselves, and thus, astronomers now5to the view that distant galaxies do exist. He then made more observations of forty-six galaxies that were travelling away from Earth with speeds that were6directly to the galaxies distance from Earth. Hubble discovered the ...
can be billions of times the mass of our sun.Scientists believe supermassive black holes may be connected to the formation of galaxies, as they often exist at the center of the mass star stems but it is still not clear exactly how, or which form first.Why does the writer write the ...
a科学家们已经在宇宙中发现了许多别的星系 The scientists have already discovered many other galaxies in the universe[translate] a侧边拉链 Side zipper[translate] a瞬间即逝 Instantaneous namely passes[translate] athis way you will know the material and won't have any reasons to be afraid 测试采取...
But scientists have 4 many other galaxies in the universe. They are a long way away and their light has 5 for many years to 6 us. It’s hard to 7 how large the universe is. Scientists have 8 lots of spacecrafts to visit other planets in our solar system, and some spac...
He then made more observations of forty-six galaxies that were travelling away from Earth with speeds that were directly to the galaxies’ distance from Earth. Hubble discovered the scientific rule-now called "Hubble’s Law”—that the farther away a galaxy is, the greater its speed. As one...
a但是科学家们已经发现了宇宙中还有许多别的星系 But the scientists had already discovered in the universe also has many other galaxies[translate] aaccounting is likely to chanhe at even faster pace in the future 会计是可能的对chanhe在更加快速步幅在将来[translate] ...
When was the first star formed? The very first stars likely formed when the Universe was about 100 million years old, prior to the formation of the first galaxies. Is universe made of atoms? The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and...
But scientists have 4 many other galaxies in the universe. They are a long way away and their light has 5 for many years to 6 us. It’s hard to 7 how large the universe is. Scientists have 8 lots of spacecrafts to visit other planets in our solar system, and some spac...
Scientists have also___many other galaxies in the universe. Their light has to travel for many years to reach us. So how___ is the universe? It is impossible to imagine___. Scientists have sent spaceships to the planet Mars to take___photos. They have___ sent spaceships to travel ou...