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Home » Space/Science

BRUIE . . . April 16, 2020 1:09 pm DanS

Mission to Europa
NASA’s Europa Clipper will conduct detailed reconnaissance of Jupiter’s moon Europa and investigate whether the icy moon could harbor conditions suitable for life.
By JPL News Release | November 18, 2019

The mission will place a spacecraft in orbit around Jupiter in order to perform a detailed investigation of Europa — a world that shows strong evidence for an ocean of liquid water beneath its icy crust and which could host conditions favorable for life. The mission will send a highly capable, radiation-tolerant spacecraft into a long, looping orbit around Jupiter to perform repeated close flybys of the icy moon.


This image of Europa, made from images taken by NASA’s Galileo spacecraft, shows long, linear cracks and ridges criss-cross the surface, interrupted by regions of disrupted terrain where the surface ice crust has been broken up and re-frozen into new patterns. (NASA/JPL-Caltech/SETI Institute)

NASA has selected nine science instruments for the mission. The selected payload includes cameras and spectrometers to produce high-resolution images of Europa’s surface and determine its composition. An ice penetrating radar will determine the thickness of the moon’s icy shell and search for subsurface lakes similar to those beneath Antarctica’s ice sheet. The mission will also carry a magnetometer to measure the strength and direction of the moon’s magnetic field, which will allow scientists to determine the depth and salinity of its ocean. Gravity measurements will also help confirm the existence of Europa’s subsurface ocean.

A thermal instrument will survey Europa’s frozen surface in search of recent eruptions of warmer water at or near the surface, while additional instruments will search for evidence of water and tiny particles in the moon’s thin atmosphere. NASA’s Hubble Space Telescope observed water vapor above the south polar region of Europa in 2012, providing potential evidence of water plumes. If the plumes’ existence is confirmed — and they’re linked to a subsurface ocean — studying their composition will help scientists investigate the chemical makeup of Europa’s potentially habitable environment while minimizing the need to drill through layers of ice.


A prototype of BRUIE, or the Buoyant Rover for Under-Ice Exploration, being tested in a lake near Utqiagvik, Alaska. (JPL/NASA)

During the nominal mission, the spacecraft will perform 45 flybys of Europa at closest-approach altitudes varying from 1700 miles to 16 miles (2700 kilometers to 25 kilometers) above the surface.

  • It took Opportunity 14 years to travel 28 miles by RobVG 2020-04-19 11:00:03
    • (link broken) by podrock 2020-04-16 17:09:23
      • True . . . by DanS 2020-04-21 06:56:54
        • Pun intended I assume :) by RobVG 2020-04-21 10:54:50
          • um ... no ... but it works.;^) by DanS 2020-04-22 14:21:29

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