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Photo Composite of Suspected Water Plumes on Europa

Photo Composite of Suspected Water Plumes on Europa
This composite image shows suspected plumes of water vapor erupting at the 7 o'clock position off the limb of Jupiter's moon Europa. The plumes, photographed by NASA's Hubble's Space Telescope Imaging Spectrograph, were seen in silhouette as the moon passed in front of Jupiter. Hubble's ultraviolet sensitivity allowed for the features, rising over 100 miles above Europa's icy surface, to be discerned. The water is believed to come from a subsurface ocean on Europa. The Hubble data were taken on January 26, 2014. The image of Europa, superimposed on the Hubble data, is assembled from data from the Galileo and Voyager missions.

About the Object

  • Distance
    DistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
    The position of Jupiter and Europa changes as they and Earth travel on their orbits through the solar system. Europa, orbiting Jupiter, was approximately 4.3 AU (400 million miles or 640 million kilometers) from Earth at the time of these observations.

About the Data

  • Data Description
    Data DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
    Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
    Data were provided by HST proposals 13438, 13620, and 13829: W. Sparks (STScI), S. Deustua (STScI), K. Hand (JPL), M. McGrath (SETI Institute), and E. Bergeron and M. Cracraft (STScI).
  • Instrument
    InstrumentThe science instrument used to produce the data.
    HST>STIS/MAMA
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    January 26, 2014 (Exposure Time: 2,023 seconds)
  • Filters
    FiltersThe camera filters that were used in the science observations.
    F25SRF2 (150nm UV)
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Europa
  • Object Description
    Object DescriptionThe type of astronomical object.
    Moon of Jupiter
  • Release Date
    September 26, 2016
  • Science Release
    Hubble Spots Possible Water Plumes Erupting on Jupiter’s Moon Europa
  • Credits
    NASA, ESA, W. Sparks (STScI), and the USGS Astrogeology Science Center

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Photo Composite of Suspected Water Plumes on Europa
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

This image was made by HST's STIS MAMA instrument with the F25SRF2 filter (150nm UV). Color was added to the grayscale image using a blue color mapping. A separate grayscale image of Europa, produced using data from the NASA Galileo and Voyager missions, was superimposed to scale. Blue: F25SRF2

Compass and Scale
Compass and ScaleAn astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.

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Details

Last Updated
Mar 03, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov