Mercury TOP STORY

New Surface Composition Maps Illuminate Mercury's History

© NASA/CIW/JHUAPL

Mercury

Two new papers from members of the MESSENGER Science Team provide global-scale maps of Mercury's surface chemistry that reveal previously unrecognized geochemical terranes large regions that have compositions distinct from their surroundings.


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Mercury

Caloris Basin on Mercury As Seen From Orbit

© NASA

Caloris Basin

This mosaic of Caloris basin is an enhanced-color composite overlain on a monochrome mosaic.

Mercury

Last Chance: Mercury Crater-Naming Contest Ends January 15

Last Chance: Mercury Crater-Naming Contest Ends January 15

The MESSENGER Education and Public Outreach (EPO) Team is reminding interested parties that the competition to name five impact craters on Mercury closes on January 15, 2015. The contest, open to everyone except members of the mission's EPO team, was launched on December 15, 2014.


Mercury

Extending MESSENGER's Mission at Mercury

Extending MESSENGER's Mission at Mercury

The MESSENGER spacecraft will soon run literally on fumes.


Mercury

MESSENGER Data Suggest Recurring Meteor Shower on Mercury

MESSENGER Data Suggest Recurring Meteor Shower on Mercury

The closest planet to the sun appears to get hit by a periodic meteor shower, possibly associated with a comet that produces multiple events annually on Earth.


Mercury

MESSENGER Provides First Optical Images of Ice Near Mercury's North Pole

MESSENGER Provides First Optical Images of Ice Near Mercury's North Pole

NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft has provided the first optical images of ice and other frozen volatile materials within permanently shadowed craters near Mercury's north pole.


Mercury

MESSENGER's View of Lunar Eclipse

MESSENGER's View of Lunar Eclipse Video in Story

As millions of people observed the total lunar eclipse on October 8, MESSENGER was also watching.


Mercury

Hokusai Crater on Mercury

Hokusai Crater on Mercury

This dramatic image features Hokusai in the foreground, famous for its extensive set of rays, some of which extend for over a thousand kilometers across Mercury's surface.


Mercury

Mercury's Magnetic Field Shows How its Interior is Different From Earth's

Mercury's Magnetic Field Shows How its Interior is Different From Earth's

Earth and Mercury are both rocky planets with iron cores, but Mercury's interior differs from Earth's in a way that explains why the planet has such a bizarre magnetic field, UCLA planetary physicists and colleagues report.


Mercury

MESSENGER Completes 3,000th Orbit of Mercury and Moves Lower

MESSENGER Completes 3,000th Orbit of Mercury and Moves Lower

On April 20, MESSENGER completed its 3,000th orbit of Mercury and moved closer to the planet than any spacecraft has been before, dropping to an altitude of 199 kilometers (123.7 miles) above the planet's surface.


Mercury

Mercury Contracted More Than Prior Estimates

Mercury Contracted More Than Prior Estimates

New evidence gathered by NASA's MESSENGER spacecraft at Mercury indicates the planet closest to the sun has shrunk up to 7 kilometers in radius over the past 4 billion years, much more than earlier estimates.


Mercury

MESSENGER Surpasses 200,000 Orbital Images of Mercury

MESSENGER Surpasses 200,000 Orbital Images of Mercury

The 1996 proposal for the mission promised a return of at least 1,000 images says Robert Gold, MESSENGER's Science Payload Manager.


Mercury

John Lennon's Crater on Mercury

John Lennon's Crater on Mercury

Lennon crater was recently named to honor English musician/singer/songwriter John Lennon (1940-1980).


Mercury

The Walls of Crater Damer on Mercury

The Walls of Crater Damer on Mercury

The steep walls of the crater Damer are highlighted in today's image.


Mercury

Looking at The Horizon of Mercury

Looking at The Horizon of Mercury

Three named craters are featured prominently in this view.


Mercury

MESSENGER Celebrates 1,000 Earth Days in Orbit around Mercury

MESSENGER Celebrates 1,000 Earth Days in Orbit around Mercury

The MESSENGER spacecraft has completed 1,000 Earth days of flight operations in orbit around Mercury.


Mercury

Craters in the Caloris Basin on Mercury

Craters in the Caloris Basin on Mercury

This image features several craters near the eastern edge of the Caloris basin. The larger craters have excavated low reflectance material, and both have hollows forming within their floors.



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