Picture of the Day: The Prometheus Plume of Io

More

ioprometheus_galileo_900.jpg


This image of Io, taken in 1997 by NASA's Galileo spacecraft in orbit around Jupiter, captures two sulfurous eruptions on the surface of the volcanic moon. At the image top, a bluish plume rises nearly 140 kilometers above the surface of a volcanic caldera known as Pillan Patera. In the image middle, the ring shaped Prometheus plume is seen rising about 75 kilometers above Io. Named for the Greek god who gave mortals fire, the Prometheus plume is visible in every image ever made of the region dating back to the Voyager flybys of 1979 - presenting the possibility that this plume has been continuously active for at least 18 years.

Image: NASA


Jump to comments
Presented by

Jared Keller is a former associate editor for The Atlantic and The Atlantic Wire and has also written for Lapham's Quarterly's Deja Vu blog, National Journal's The Hotline, Boston's Weekly Dig, and Preservation magazine. 

Get Today's Top Stories in Your Inbox (preview)

Tracing Sriracha's Origin to a Seaside Town in Thailand

Ever wonder how the wildly popular hot sauce got its name? It all started in Si Racha.


Elsewhere on the web

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

Where the Wild Things Go

A government facility outside of Denver houses more than a million products of the illegal wildlife trade, from tigers and bears to bald eagles.

Video

Adults Need Playtime Too

When was the last time you played your favorite childhood game?

Video

Is Wine Healthy?

James Hamblin prepares to impress his date with knowledge about the health benefits of wine.

Video

The World's Largest Balloon Festival

Nine days, more than 700 balloons, and a whole lot of hot air

Writers

Up
Down

More in Technology

Just In