We explore & discover

Scientists at the Department of Terrestrial Magnetism (DTM) bring the perspective of several disciplines to broad questions about nature. DTM's name comes from its original role to chart the Earth's magnetic field. This goal was largely accomplished by 1929. Since then, DTM has evolved to reflect the growing multi-disciplinary nature of the Earth, planetary, and astronomical sciences. Today, the historic goal remains to understand the physical Earth and the universe that is our home.

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Five Questions About Jupiter's New Moons with Scott Sheppard

Five Questions About Jupiter's New Moons with Scott Sheppard

Via YouTube: Scott Sheppard, lead scientist in the recent discovery of 12 moons of Jupiter, discusses the discovery and its implications for the history of this gas giant.

A Dozen New Moons of Jupiter Discovered, Including One "Oddball"

A Dozen New Moons of Jupiter Discovered, Including One

Twelve new moons orbiting Jupiter have been found—11 "normal" outer moons, and one that they're calling an "oddball." This brings Jupiter's total number of known moons to a whopping 79—the most of any planet in our Solar System.

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DTM scientists regularly explore our planet and the universe. Along the way they capture images of stunning landscapes, geophysical processes and data visualizations.

Browse DTM’s online image gallery to share in the journey of scientific exploration and discovery.

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