What is the largest structure in the universe?
Hi! I have a question regarding the scale of the cosmos. My question: What is the largest structure in the universe?
The largest structures in the universe are superclusters, which are large associations of galaxies that can extend over distances of more than 100 million light-years.
I just did a quick search through the literature, and the largest supercluster on which I was able to find any information is the Sculptor Supercluster, which, according to the supercluster catalog compiled by a group of astronomers at Tartu Observatory in Estonia and the IUE Observatory in Spain, is nearly 1 billion light-years away, and extends roughly 250 million light-years from end to end. That's not to say that there might not be some larger superclusters out there, but astronomers don't have any reason to believe that there are any structures bigger than superclusters.
Get More 'Curious?' with Our New PODCAST:
- Podcast? Subscribe? Tell me about the Ask an Astronomer Podcast
- Subscribe to our Podcast | Listen to our current Episode
- Cool! But I can't now. Send me a quick reminder now for later.
- Where, in relation to the entire universe, is the Milky Way located?
- What are collections of galaxies called?
- What is the largest galaxy?
- How do we know that superclusters are the largest structures in the universe?
- Is the Great Wall the largest galaxy cluster?
How to ask a question:
If you have a follow-up question concerning the above subject, submit it here. If you have a question about another area of astronomy, find the topic you're interested in from the archive on our site menu, or go here for help.
This page has been accessed 53205 times since October 19, 2002.
Last modified: October 19, 2002 3:28:10 PM
Ask an Astronomer is hosted by the Astronomy Department at Cornell University and is produced with PHP and MySQL.
Warning: Your browser is misbehaving! This page might look ugly. (Details)