SpaceHow every galaxy comes from quantum fluctuations billions of years ago All the galaxies in the universe started out in a similar way, but the forms they now take are incredibly diverse, writes Chanda Prescod-WeinsteinComment
SpaceThe universe is expanding too fast, and that could rewrite cosmology Different measurements of the Hubble constant, the rate of space-time expansion, refuse to agree – meaning we may have to look beyond Einstein’s theories to explain the universe Features