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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.

Missions to Mercury

Mission
Country
Launch Date
Arrival Date
Type
Encounter
Characteristics
MESSENGER
(MErcury Surface,
Space ENvironment,
GEochemistry, and Ranging)
USA
August 2004
March 2011
Flybys and Orbit
Will study Mercury from orbit for one year
USA
November 3, 1973
March 29, 1974
Flyby
10,000 images covering 57% of the planet
Currently in Solar Orbit

An Overview of Space Exploration

Last modified July 30, 2004 by Randy Russell.

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Cool It! Game

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

MESSENGER Mission to Mercury

MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) is the name of a spacecraft that will study Mercury; the planet closest to the Sun. MESSENGER is scheduled for launch from Cape...more

Mercury's Poles

If Uranus is the "tilted planet", Mercury might be called the "upright planet". The spin axis of Uranus, which defines the locations of the planet's North and South Poles, is tilted by 98. The spin axis...more

The Magnetic Poles of Mercury

Mercury has a weak magnetic field. Like Earth's magnetic field, Mercury's dipole field is tilted with respect to the planet's spin axis. This means that Mercury's magnetic poles and its geographic poles...more

Atmosphere of Mercury

Mercury has very little atmosphere. The planet's small size means that its gravity is too weak to hold down a normal atmosphere. There is a very thin atmosphere around the planet. Mercury's thin atmosphere...more

Magnetosphere of Mercury

Mercury is the only terrestrial planet other than the Earth that has a significant magnetic field (220 nT). This field, along with the planet's high density and small size relative to the Earth, indicates...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA