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Mercury

New observations reveal secrets of sodium flares in Mercury’s exosphere
Posted inResearch Spotlights

Observing Mercury’s Brilliant Flares from Earth

by E. Underwood 9 August 20177 March 2022

Researchers make the first short-term observation of sodium flares in Mercury’s exosphere.

Impact craters on Mercury’s surface reveal how fast the planet’s topography is changing
Posted inResearch Spotlights

How Quickly Is Mercury’s Surface Evolving?

by Terri Cook 26 June 20176 March 2023

New measurements of impact craters on Mercury’s smooth plains suggest that the topography of the solar system’s innermost planet is changing at twice the rate of landforms on the Moon.

Researchers think the depth of hollows on Mercury’s surface aren’t determined by the volatile-rich outer layer on the planet surface.
Posted inResearch Spotlights

Unprecedented Views of Mercury Constrain Hollow Formation

by Terri Cook 10 November 201625 August 2022

The consistently shallow depths of the depressions scattered across Mercury's surface suggest their morphology is not determined by the thickness of a volatile-rich outer layer.

Posted inResearch Spotlights

Demystifying Mercury "Hollows"

by Terri Cook 11 March 201628 July 2022

Spectral data from NASA's MESSENGER spacecraft indicate that the properties of the depressions on Mercury's surface can vary within a single crater and that these differences may correlate to age.

Posted inResearch Spotlights

Mercury's Magnetosphere Model Gets Retro Makeover

by Mark Zastrow 3 December 201527 July 2022

New observations from Mercury revive a once-abandoned model for its magnetic field, resulting in a new profile that better fits the data.

Posted inNews

Mercury's Secrets Revealed by Soon-to-Crash Spacecraft

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 30 April 201517 January 2023

From finding water ice on Mercury to discovering magnetic field lines cutting through the planet, NASA's MESSENGER spacecraft has spent its lifetime unveiling Mercury's secrets.

Posted inResearch Spotlights

Scientists Watch Solar Winds Blast Mercury's Magnetic Field

by E. Betz 25 March 201518 July 2023

A NASA team used the MESSENGER spacecraft to analyze Mercury's magnetosphere during intense solar wind pressure.

Posted inResearch Spotlights

Large-Scale Electric Currents May Flow Through Mercury's Crust

by J. Orwig 18 March 201516 November 2021

NASA's MESSENGER spacecraft discovered electric currents in Mercury's magnetosphere directed toward and away from the planet. Do the currents reach the planet? If so, where do they go?

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