template: ### Instruction: Rewrite this English sentence to give a better translation.
  
  ### English: There are very industrious experiments being built on Earth -- one called LIGO -- which will detect deviations in the squeezing and stretching of space at less than the fraction of a nucleus of an atom over four kilometers.
  ### English rewrite: There are very clever experiments being built on the earth, one of them called LIGO, which will be able to detect the smallest distortions in space, less than a fraction of the size of an atom, over a distance of four kilometers.