Astronomy Picture of the Day
    


APOD: 2024 August 25 Á Fresh Tiger Stripes on Saturns Enceladus
<< Yesterday 25.08.2024
APOD: 2024 August 25 Á Fresh Tiger Stripes on Saturns Enceladus
Credit & Copyright: NASA, ESA, JPL, SSI, Cassini Imaging Team
Explanation: Do underground oceans vent through canyons on Saturn's moon Enceladus? Long features dubbed tiger stripes are known to be spewing ice from the moon's icy interior into space, creating a cloud of fine ice particles over the moon's South Pole and creating Saturn's mysterious E-ring. Evidence for this has come from the robot Cassini spacecraft that orbited Saturn from 2004 to 2017. Pictured here, a high resolution image of Enceladus is shown from a close flyby. The unusual surface features dubbed tiger stripes are visible in false-color blue. Why Enceladus is active remains a mystery, as the neighboring moon Mimas, approximately the same size, appears quite dead. An analysis of ejected ice grains has yielded evidence that complex organic molecules exist inside Enceladus. These large carbon-rich molecules bolster -- but do not prove -- that oceans under Enceladus' surface could contain life.

Explore Your Universe: Random APOD Generator

January
February
March
April
May
June
July
August
 < August 2024  
Mo Tu We Th Fr Sa Su



1234
567891011
12131415161718
19202122232425
262728293031
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Enceladus - Saturn
Publications with words: Enceladus - Saturn
See also:
All publications on this topic >>