Media Information

 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Swirling Clouds Over the South Pole of Venus
Explanation:
What's happening over the South Pole of Venus? To find out, scientists sent the robot Venus Express spacecraft [ http://www.esa.int/…] now orbiting Venus [ http://www.nineplan…] directly over the lower spin axis of Earth's overheated twin. Venus Express [ http://en.wikipedia…] confirmed there a spectacular massive swirling storm system with similarities to the vortex recently imaged over Saturn's South Pole [ http://antwrp.gsfc.…]. The above composite image [ http://www.esa.int/…] in infrared light [ http://science.hq.n…] features Venus' daytime side on the left, shining primarily by reflected sunlight, and nighttime side on the right, shining primarily by thermal light [ http://tes.asu.edu/…]. A Venusian polar vortex is visible as the small circular feature near the center of the thermal infrared image pictured on the right. Close inspection of other South Pole images [ http://www.esa.int/…] unexpectedly showed a second vortex, meaning that the unusual swirling clouds are like an Earth-hurricane [ http://antwrp.gsfc.…] that has two eyes. Why a double vortex has formed is now a topic of research [ http://adsabs.harva…]. The above image [ http://www.esa.int/…] was taken last year, and more recent images [ http://www.esa.int/…Express&type=I ] from Venus Express are being processed that have as much as 100 times more detail.
Credit and Copyright:
facet_where:
Mars
facet_where:
Saturn
facet_where:
Venus
facet_where:
Germany
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Mars
facet_what:
Surveyor
facet_what:
Saturn
facet_what:
Venus
facet_what:
Polar
facet_what:
TES
facet_what:
Venus Express
facet_what:
clouds
original url:
UID:
SPD-APOD-ap070501

Swirling Clouds Over the South Pole of Venus