On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...

NASA’s Hubble Space Telescope captured a surprising asteroid trail while observing a distant spiral galaxy 102 million ...

The Hubble Space Telescope, a cornerstone of modern astronomy, has been providing breathtaking images and invaluable data for ...

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has sat at the center of the standard cosmological model. The evidence clearly ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

Floating high above Earth's atmosphere, the Hubble Space Telescope has captured some of the most breathtaking images ever ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according ...

NASA's James Webb Space Telescope confirmed Earendel, the most distant star, shining just one billion years after the Big ...