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Grades 6-8

Messenger: Mission to Mercury

Science Bulletin

MESSENGER: Mission to Mercury

The MESSENGER orbiter's January 2008 flyby of the planet Mercury was historic. The last time a spacecraft visited was 1975, and it only mapped half the planet. MESSENGER is now sending back a complete picture of Mercury, shedding light on its geological history. But the ongoing mission will return much more than images. Its data on the planet's core, magnetic field, composition, and other attributes will help scientists answer pressing questions about the evolution of the terrestrial planets and even the Solar System itself. In the feature video, watch the MESSENGER science team react as the orbiter's first images of Mercury roll in. To explore the images in detail, click on the slide show at left. Find out more on the mission by clicking on the essay "First Planet Finishes Last."

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Curriculum Materials

Spitzer Hall of Human Origins Glossary

What are evolutionary trees? How do hominids differ from primates? And why is it important that humans are capable of symbolic thought? Find out with this guide from "DNA" to "variation."

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