Changes on the Surface of Io
This Hubble Space Telescope pair of images of Jupiter's volcanic moon Io shows the surprising emergence of a 200-mile diameter large yellowish-white feature near the center of the moon's disk (photo on the right). This is a more dramatic change in 16 months than any seen over the previous 15 years, say researchers.
For comparison the photo on the left was taken in March 1994 -- before the spot emerged -- and shows that Io's surface had undergone only subtle changes since it was last seen close-up by the Voyager 2 probe in 1979.
About the Image
|Release date:||10 October 1995, 05:00|
|Size:||800 x 600 px|
About the Object
|Type:||• Solar System : Planet : Satellite|
• Solar System : Planet : Satellite : Feature : Surface
• X - Solar System Images/Videos
Colours & filters
|Ultraviolet||Hubble Space Telescope|