Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their results match “local” measurements but clash with early-universe estimates, ...

The light of a supernova that has traveled for 10 billion years to reach us has given us a new measurement of the Hubble constant – the accelerating rate at which the Universe is expanding. Called SN ...

"Sometimes the best science happens by accident." The post Scientists Startled by What Happens When They Point Hubble at ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA astronaut Story ...

The Hubble Space Telescope has been one of humanity's greatest achievements. After a rocky start that required a servicing run to compensate for a mirror defect, the orbiting observatory has expanded ...