Tuesday, 7 July 2009

Will the Universe keep expanding forever?

This question has mystified astronomers since they first realised over seventy years ago that the Universe is not static but expanding. Over the last few years and after decades of controversy, resolution of this puzzle is within sight. The latest studies of supernova explosions vast distances from Earth, and of the pattern of irregularities in the cosmic microwave background, are telling us that not only is the Universe expanding, but that the rate of expansion is accelerating. Many astronomers are now convinced that the Universe will indeed expand forever.
By mahesh saagr khanal for scientific nepal



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