File:Possible Geysers on Europa.png

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Possible Geysers on Europa

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DescriptionPossible Geysers on Europa.png	English: The interior of Jupiter's moon Europa is encapsulated under a crust of ice and has been kept warm over billions of years. The warmer temperature is due to gravitational tidal forces that flex the moon's interior, keeping it warm and creating the potential for geysers on Europa's surface. The Hubble Space Telescope has observed possible geyser plumes in 2014 and 2016 in the same location. These observations bolster evidence that the plumes are a real phenomenon, flaring up intermittently in the same region on the moon. The 2016 plume rises 62 miles (99.7 km) above the surface, while the 2014 plume is estimated to rise about 30 miles (48.3 km) high. The location of the plumes corresponds to the position of an unusually warm spot on the moon's icy crust, as measured in the late 1990s by NASA's Galileo spacecraft. For more information, visit: hubblesite.org/news_release/news/2017-17 Science Credit: NASA, ESA, and W. Sparks (STScI); Illustration Credit: NASA, ESA, W. Sparks (STScI), and the USGS Astrogeology Science Center
Date	29 September 2016
Source	https://www.flickr.com/photos/144614754@N02/45924490534/
Author	NASA Hubble

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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/45924490534 (archive). It was reviewed on 26 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

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Europa (moon)

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Date and time of data generation	16:49, 29 September 2016
Headline	Hubble Spots Possible Venting Activity on Europa
Credit/Provider	Illustration Credit: NASA, ESA, W. Sparks (STScI), and the USGS Astrogeology Science Center; Science Credit: NASA, ESA, and W. Sparks (STScI)
Source	STScI
Short title	Hubble Spots Possible Venting Activity on Europa
Image title	Best Evidence Yet for Reoccurring Water Vapor Plumes Erupting from Jupiter’s MoonWhen Galileo discovered Jupiter's moon Europa in 1610, along with three other satellites whirling around the giant planet, he could have barely imagined it was such a world of wonder.This revelation didn't happen until 1979, when NASA's Voyager 1 and 2 flew by Jupiter and found evidence that Europa's interior, encapsulated under a crust of ice, has been kept warm over billions of years. The warmer temperature is due to gravitational tidal forces that flex the moon's interior— like squeezing a rubber ball — keeping it warm. At the time, one mission scientist even speculated that the Voyagers might catch a snapshot of geysers on Europa.Such activity turned out to be so elusive that astronomers had to wait over three decades for the peering eye of Hubble to monitor the moon for signs of venting activity. A newly discovered plume seen towering 62 miles above the surface in 2016 is at precisely the same location as a similar plume seen on the moon two years earlier by Hubble. These observations bolster evidence that the plumes are a real phenomenon, flaring up intermittently in the same region on the satellite.The location of the plumes corresponds to the position of an unusually warm spot on the moon's icy crust, as measured in the late 1990s by NASA's Galileo spacecraft. Researchers speculate that this might be circumstantial evidence for material venting from the moon's subsurface. The material could be associated with the global ocean that is believed to be present beneath the frozen crust. The plumes offer an opportunity to sample what might be in the ocean, in the search for life on that distant moon.
Author	Space Telescope Science Institute Office of Public Outreach
Usage terms	http://hubblesite.org/copyright/
Width	1,235 px
Height	618 px
Pixel composition	RGB
Number of components	3
Horizontal resolution	192 dpi
Vertical resolution	192 dpi
Exif version	2.21
Color space	sRGB
Image width	2,000 px
Image height	1,001 px
Bits per component	8 8 8
Date and time of digitizing	16:49, 29 September 2016
File change date and time	11:01, 10 April 2017
Date metadata was last modified	11:01, 10 April 2017
Software used	Adobe Photoshop CC 2017 (Macintosh)
Unique ID of original document	840F4BADF4ABE89D97C3B2817A06DAC6
Keywords	Europa
Contact information	outreach@stsci.edu http://hubblesite.org 3700 San Martin Drive Baltimore, MD, 21218 USA 410-338-4444

File:Possible Geysers on Europa.png

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