Galaxies | Page 2 of 61 | Astronomy.com

NGC 2623 is a great example of what a pair of interacting galaxies looks like, 260 million light-years distant. Galaxies need mergers or other cosmic events to perturb different regions and trigger star formation and galaxy evolution.

Survivors from the Milky Way’s birth

The Andromeda Galaxy (M31) is the nearest major galaxy, and spans a width equivalent to more than six Full Moons.

Deep-Sky Objects

How to grasp the scale of the cosmos from your backyard

10 modern mysteries of the universe

Deep-Sky Objects

Tools for finding dark skies

NGC 4449

Galaxies, Science, Stars

Gemini North celebrates its 25th birthday with a glorious photo of NGC 4449

NGC 5264

Exotic Objects, Galaxies

Massive black holes may eat differently in small galaxies than in large ones

JWST's infrared image from its NIRCam captured JADES-GS-z14-0, the most distant known galaxy. Credit: NASA, ESA, CSA, STScI, B. Robertson (UC Santa Cruz), B. Johnson (CfA), S. Tacchella (Cambridge), P. Cargile (CfA)

Galaxies, Science

Webb discovers the earliest known galaxy — for now

JWST discovers black holes merging near the dawn of the cosmos

Deep-Sky Objects, Galaxies, Observing

Fall into the Whirlpool Galaxy: This Week in Astronomy with Dave Eicher

Deep-Sky Objects, Galaxies, Observing

How Markarian 205 nearly broke the universe: This Week in Astronomy with Dave Eicher

When stars “die,” they leave one of two objects behind. Massive stars explode as supernovae, creating remnants of gas and dust like the Crab Nebula (M1). Credit: ASA, ESA, J. Hester and A. Loll (Arizona State University)

Milky Way, Stars

How many stars die in the Milky Way each year?

Deep-Sky Objects, Galaxies, Observing

Explore the Virgo galaxy cluster: This Week in Astronomy with Dave Eicher