Astrophotographer Greg Meyer has captured a colorful view of the famous Trifid and Lagoon nebulas illuminated from within by radiation cast out by generations of energetic young stars.

An important clue to which perspective was right seemed to be hidden in the nebulae—fuzzy smears of light ("nebula" means "fuzzy") whose nature had been a source of debate for centuries. Some ...

The embedded variable stars proved that the Andromeda nebula was much farther away than the stars that comprised the Milky Way. Andromeda was therefore a separate galaxy — similar to, yet ...

Clearly, the Andromeda Nebula was a system of stars quite separate from the Milky Way, and in many ways comparable to it. From this simple observation, soon repeated for other starry nebulae, it ...

In this way, he obtained some of the first high-resolution pictures of prominent deep-sky objects such as the Pleiades (M45), Andromeda, the Triangulum Galaxy (M33), the Veil Nebula, and dozens more.

The Dark Energy Camera imaged the Rosette Nebula, capturing a kaleidoscope of color created by the star cluster born within it. When you purchase through links on our site, we may earn an ...

Take a deep breath: the universe is not just big it’s mind-bogglingly, practically scandalously huge. And it’s growing. A ...

As early as 1912, astronomers realized that the Andromeda galaxy, then considered just a nebula, was heading toward us—toward the Milky Way. A century later, astronomers using NASA’s Hubble Space ...

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The Tarantula Nebula is known for its beautiful colors, and we’ve seen some stunning photos of the Tarantula Nebula thanks to James Webb and other space telescopes. Now, though, using data from ...

For years, astronomers have predicted a dramatic fate for our galaxy: a head-on collision with Andromeda, our nearest large galactic neighbor. This merger—expected in about 5 billion years—has ...

The Andromeda Galaxy, the Milky Way's closest galactic neighbor, glows brightly in a new Hubble Space Telescope image with swathes of ionized gas that fuel star formation.