Picture of the Day: Globular Clusters of Stars, From a Young Galaxy

m72_hst_615.jpg

NASA

Big, hugely massive things tend to congeal into spheres. Earth, Jupiter, Mars: Every planet in our solar system is a sphere. Stars, too, are spheres. But what's not known is that stars themselves congeal into massive spheres, as well, forming what are called globular clusters.

Globular clusters are the hallmark of a young galaxy. M72 is one such galaxy and holds the cluster above. There are few clusters left in our own Milky Way -- around 200 -- but there used to be many thousands, and they ranged the galaxy until they were destroyed by contact with the galactic center. Which is kind of awesome.

More than 100,000 stars are in the cluster, in M72, above.

Below, recent Pictures of the Day:


Presented by

Robinson Meyer is an associate editor at The Atlantic, where he covers technology.

Never Tell People How Old They Look

Age discrimination affects us all. Who cares about youth? James Hamblin turns to his colleague Jeffrey Goldberg for advice.

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register.

blog comments powered by Disqus

Video

Never Tell People How Old They Look

Age discrimination affects us all. James Hamblin turns to a colleague for advice.

Video

Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

Video

Pittsburgh: 'Better Than You Thought'

How Steel City became a bikeable, walkable paradise

Video

A Four-Dimensional Tour of Boston

In this groundbreaking video, time moves at multiple speeds within a single frame.

Video

Who Made Pop Music So Repetitive? You Did.

If pop music is too homogenous, that's because listeners want it that way.

More in Technology

Just In