A Caltech Library Service

Galaxy Collisions Preview Milky Way’s Fate

Evans, Aaron S. and Armus, Lee (2021) Galaxy Collisions Preview Milky Way’s Fate. Scientific American, 325 (6). pp. 32-39. ISSN 0036-8733. doi:10.1038/scientificamerican1221-32.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


In approximately five billion years, as the sun expands into a red giant star roughly the diameter of Earth’s orbit around it, our galaxy will collide with its nearest large neighbor, Andromeda. As gravity draws the pair toward each other for a close encounter, stars will be ripped from their orbits to make spectacular tails, and gas and dust will be squeezed toward the approaching nuclei, destroying the stately, grand spirals that have existed for almost three quarters of the age of the universe.

Item Type:Article
Related URLs:
URLURL TypeDescription
Evans, Aaron S.0000-0003-2638-1334
Armus, Lee0000-0003-3498-2973
Alternate Title:Cosmic Crashes
Additional Information:© 2021 Scientific American, a division of Springer Nature America, Inc.
Issue or Number:6
Record Number:CaltechAUTHORS:20220413-220921442
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:114289
Deposited By: Tony Diaz
Deposited On:13 Apr 2022 22:21
Last Modified:13 Apr 2022 22:21

Repository Staff Only: item control page