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Rare View of Ancient Galaxy Crash Revealed

Astronomers caught a glimpse of two star-forming galaxies as they collided 11 billion light-years away. The smashup could eventually produce one giant elliptical galaxy, researchers say

May 22, 2013 — Mike Wall and

Mystery of Moon's Magnetic Field Deepens

The moon generated a surprisingly intense magnetic field until at least 3.56 billion years ago, 160 years longer than previously thought, a new study reports

May 20, 2013 — Charles Q. Choi and

Obama Praises Mars Rovers, U.S. Science in Speech

In his address to the National Academy of Sciences on their 150th anniversary, Pres. Obama expressed his support for the sciences as a fundamental part of American life in today's world

April 29, 2013 — Miriam Kramer and

Cosmonauts Take Spacewalk Outside Space Station

The six-hour spacewalk involves upgrading the orbiting lab with new experiments to measure charged particle interactions and the effects of microbes on spacecraft materials

April 19, 2013 — Megan Gannon and
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