NASA recently released images of the Andromeda galaxy, an "enticing empire of stars ... Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and NASA scientists ...

Clearly, the Andromeda Nebula was a system of stars quite separate ... it became clear that the Milky Way was only one star system (or galaxy) among myriad others. This was the birth of our ...

The Lyrids meteor shower begins on April 17 and peaks April 22. Stargazers can see 18 meteors per hour streaking across the ...

This revealed that Andromeda was a galaxy separate from the Milky Way, not a nebula within it - a breakthrough that unlocked the nature of galaxies in a first step toward understanding the vast ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of many galaxies in an ever-expanding cosmos. This breakthrough led to the ...

Photo: Andromeda nebula plate with Hubble's handwritten circle ... were actually separate systems outside and independent of our galaxy. It was the first evidence of galaxies outside our own ...

Scientists, using infrared images from NASA's Spitzer Space Telescope, have found that the Milky Way’s graceful spiral structure is primarily shaped by two arms extending from a central bar of stars.

An ambitious new survey by the Hubble Space Telescope offers the first bird's-eye view of all known dwarf galaxies orbiting the Andromeda galaxy. The data suggests Andromeda had a chaotic past unlike ...

This galaxy, designated Andromeda XXXV, and its compatriots orbiting our neighbor galaxy, Andromeda, could change how we think about cosmic evolution. That's because dwarf galaxies this small ...