Imagine that the size of a bacterium is measured from a distance of about 4500 light-years. This would be an incredible measurement, considering that a bacterium is so small that a microscope is required to see it, and what an enormous distance light can travel in 4500 years, given that it can round the Earth more than seven times in just one second.
Click here for original story, Microscopic deformation of a neutron star inferred from a distance of 4500 light-years
Source: Phys.org