NGC 6355 has been imaged using NASA's Hubble Space Telescope. The globular cluster of stars lies 50,000 light-years away.

Of all the posited answers, experts say the Dark Forest hypothesis seems less likely to be correct. It’s possible that ...

Eugene Shoemaker, the founder of astrogeology, dedicated his life to understanding planetary formation through impacts. His ...

Interstellar comet 3I/ATLAS is passing safely through our solar system. Learn about its discovery, its distant path, and why ...

In 1978, Ride and five other women became the first group of female astronauts in the U.S. A new book by a longtime curator ...

Plasma ejections from young stars may offer valuable insights into the Sun’s early history. Most of the time, we hardly notice it from Earth, but the Sun is constantly hurling vast clouds of charged ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be ...

On May 20, 1990, the Hubble Space Telescope sent its first image to Earth. This photo turned out to be 50% sharper than images from ground-based telescopes. In August of that year, Hubble made one of ...

Down here on Earth we don't usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are ...

A couple months back, astronomers officially confirmed the existence of “Betelbuddy,” Betelgeuse’s long-suspected companion ...

Jared Isaacman and Sarah Gillis briefly floated out the door of the Dragon capsule, wearing SpaceX-built pressure suits to ...