“The reason for the colour changing is that the rate of stars forming is changing，”said Ivan Baldry，an astronomer who worked to find the average colour of light in the universe.

　　Research presented by NASA scientists shows that the highest point of star­forming may have occurred earlier than previously(以前)believed.It was probably very soon after the“Big Bang(宇宙大爆炸)”that many scientists believe gave birth to the universe.

　　There is no way any human could actually see the green colour.“The only way to see it is if you saw all the universe from the same distance away and it was not moving，”Baldry said.Baldry and his co­worker，Karl Glazebrook，have both joked about possible marketing(营销)opportunities for the new colour.

　　Perhaps colour­of­the­universe T­shirts or coffee cups could become popular.But Baldry allowed，“I don't know if you can patent(专利)a colour，that's not our business.We haven't actually been to a paint shop yet to see if they have a name for this.”

　　1．The astronomers discovered the colour of the universe________.

　　A．when they were researching on the age of the universeB．when they attempted to test theories about the forming of stars and galaxies

　　C．to prove that the universe is continuously changing

　　D．and showed that the stars and galaxies may have formed earlier than previously believed

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