Distance measured to 1 percent

Distance measured to 1 percent

An artist's concept of the new measurement of the size of the Universe.

An artist's concept of distance to remote galaxies. The gray spheres show the pattern of the "baryon acoustic oscillations" from the early universe. Galaxies today have a slight tendency to align on the spheres -- the alignment is greatly exaggerated in this illustration. By comparing the size of the spheres (white line) to the predicted value, astronomers can determine to 1 percent accuracy how far away the galaxies are.

Image: Zosia Rostomian, Lawrence Berkeley National Laboratory
Licensing and Use