In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

The European Southern Observatory (ESO) has released a stunning 80 million-pixel image of the star cluster RCW 38, as captured by ESO's Visible and Infrared Survey Telescope for Astronomy (VISTA), ...

NASA's Curiosity rover has captured images of rainbow-colored noctilucent clouds in Mars' atmosphere. Made of dry ice, these ...

Astronomers trace the striking pattern to an encounter between a big galaxy and a much smaller one some 50 million years ago.

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from the new galaxy.

Expected to launch no earlier than Thursday, Feb. 27, from Vandenberg Space Force Base in California, NASA's SPHEREx space ...

SPHEREx is a groundbreaking NASA telescope that will map the entire sky in infrared, revealing insights into cosmic inflation ...

One of the key objectives of the new space observatory will be to search the Milky Way galaxy for essential building blocks ...

The mission will search the Milky Way galaxy for essential building blocks of life ... light into its component colors (individual wavelengths), like a prism creates a rainbow from sunlight, in order ...

That means it's more than 30 times the size of our own Milky Way galaxy. It's also enigmatic, the researchers say, with unusual qualities that defy simple explanation. They decided to name it after ...

During the Galaxy Unpacked keynote presentation, Samsung officially showcased its next flagship smartphones with the Galaxy S25 series. This includes the Galaxy S25, S25 Plus, and S25 Ultra.