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)

A Fascinating Short Film About the Multiverse

If life is a series of infinite possibilities, what does it mean to be alive?


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

The Death of Film

You'll never hear the whirring sound of a projector again.

Video

How to Hunt With Poison Darts

A Borneo hunter explains one of his tribe's oldest customs: the art of the blowpipe

Video

A Delightful, Pixar-Inspired Cartoon

An action figure and his reluctant sidekick trek across a kitchen in search of treasure.

Video

I Am an Undocumented Immigrant

"I look like a typical young American."

Video

Why Did I Study Physics?

Using hand-drawn cartoons to explain an academic passion

Writers

Up
Down

More in Technology

Just In