Mercury TOP STORY

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

© NASA/JHUAPL/CIW

Ice at 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.


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MESSENGER's View of Lunar Eclipse Video in Story

© NASA

Earth Moon System

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.


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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).


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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.


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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.


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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.


Mercury

An Explanation of the Rotational State of Mercury

An Explanation of the Rotational State of Mercury

Planetary scientists are announcing today a new explanation of the current rotational state of the planet Mercury. The report is being presented by Dr. Benoit Noyelles of the University of Namur, Belgium, to the meeting of the Division for Planetary Sciences of the American Astronomical Society, held in Denver, CO.


Mercury

1,000th Featured Image from the Mercury MESSENGER Spacecraft

1,000th Featured Image from the Mercury MESSENGER Spacecraft

The MESSENGER project is celebrating the posting today of the 1,000th featured image from Mercury. The Mercury Dual Imaging System (MDIS) team has posted a new image to the MESSENGER website approximately once per business day since March 29, 2011, when the first image obtained from orbit about the innermost planet was made public.


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Mercury - Peaking into the Dark

Mercury - Peaking into the Dark

In this dramatic scene, an unnamed crater in Mercury's northern volcanic plains is bathed in darkness as the sun sits low on the horizon.


Mercury

Enhanced Color Mercury Map

Enhanced Color Mercury Map

This colorful view of Mercury was produced by using images from the color base map imaging campaign during MESSENGER's primary mission.


Mercury

NASA Software Updated for 3D View of Mercury

NASA Software Updated for 3D View of Mercury

NASA's ACT-REACT Quickmap tool has recently been updated with a new 3D Live View function to visualize the surface of Mercury.



More top stories from October.