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 ...

NASA has released this photomosaic in two images that can be downloaded from its website: ...

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

In a study published in the Astrophysical Journal, a team of researchers led by Kristen McQuinn, a scientist at the Space ...

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

NASA’s Spitzer Telescope revealed the Milky Way’s hidden center, using infrared to uncover its dense, star-packed core. This ...

The most powerful telescope to be launched into space has made history by detecting a record number of new stars in a distant galaxy. NASA's James Webb Space Telescope, history's largest and most ...

The Milky Way belongs to this class, as well as our nearest galactic neighbor, the Andromeda Galaxy. Globular clusters are often mentioned in the same breath as galaxies, so they deserve a nod.