Join Donate

The Bruce Murray Space Image Library

Mercury's magnetic field

Mercury's magnetic field

Click to view full image

Courtesy of Science / AAAS

Mercury's magnetic field
Mercury’s magnetic field is distorted by the solar wind, which compresses the magnetic field on the dayside and stretches it out to form a long tail on the nightside. Interaction between the solar wind and the planetary field creates the bow shock and magntopause boundaries, as well as features noted in the figure. Two representative MESSENGER orbits are shown in green. When the spacecraft is closest to the planet at night the orbit takes the form of the solid green ellipse. One-half Mercury year later, the spacecraft is closest to the planet during the daytime and the orbit takes the form of the dashed green ellipse. The MESSENGER orbit carries the spacecraft across the magnetospheric boundaries and through each region of Mercury’s magnetic field. The challenge for MESSENGER scientists is to extract telltale signatures that indicate how Mercury’s magnetic field would look without the solar wind.

© This image is copyrighted with all rights reserved. Do not reuse in any way without permission. Contact us to request publication permission from the copyright holder

Explore related images: BMSIL, pretty pictures, Mercury, MESSENGER

Comments & Sharing
More Images
Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Bruce Murray and Carl Sagan
Pretty Pictures

Support the Bruce Murray Space Image Library and help us share the wonders of other worlds.


"We're changing the world. Are you in?"
- CEO Bill Nye

I'm In!