First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

Planned launch of 500,000 satellites could spoil about one in three Hubble images, even when the telescope stays above Earth's weather.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A dramatic rise in the number of internet satellites ...

NASA's Hubble Space Telescope (HST) has played a pivotal role in the field of space study, providing some of the best visual images of space. The telescope has been traveling at 17,500 miles per hour ...

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's ...