In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the ...

In the years following the launch of NASA’s Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

The Andromeda Galaxy, 2.5 million light-years away, is unveiled in Hubble's largest photomosaic. Spanning a decade, this ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

Looking at a distant galaxy means looking back in time.

The stunning spiral arms of the nearby galaxy Messier 81 are beautifully showcased by NASA's Spitzer Space Telescope. NASA's ...

In the Milky Way and nearby galaxies, such as the Andromeda Galaxy, astronomers can observe stars one by one. But for ...

Photos from the James Webb Space Telescope have revealed more than 40 stars within the gravitationally lensed "Dragon Arc" ...

In an astronomical feat, using NASA's James Webb Space Telescope, a team of astronomers observed a distant galaxy, uncovering ...

This image of twin bubbles stretching 25,000 light-years from the galactic center was captured by NASA's Fermi Gamma-ray ...

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...