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Nov 25, 2015 12:15 AM ET // Irene Klotz
A century after Albert Einstein unveiled a new concept to explain gravity, his so-called general relativity theory remains fertile ground for scientific observations and experiments.
Nov 24, 2015 06:20 PM ET // Irene Klotz
Exactly 100 years ago on Nov. 25, 2015, physicist Albert Einstein, then 36, presented a fourth and final lecture to the Prussian Academy of Sciences about his new general theory of relativity.
Nov 12, 2015 01:40 PM ET // Elizabeth Howell
What did we learn from Voyager 1? Read about the mysterious processes of Saturn and some of the secrets of its moons.
Nov 7, 2015 07:00 AM ET // Elizabeth Howell
It's hard work to be in space for months at a time. Read about the record-holders for America's single spaceflights -- including Scott Kelly, who just recently surpassed the previous mark of 215 days.
Nov 4, 2015 10:58 AM ET // Irene Klotz
Candidates must hold a bachelor’s degree from an accredited institution in engineering, biological science, physical science or mathematics.
Oct 12, 2015 07:00 AM ET // Elizabeth Howell
How pretty pictures from the Apollo landings helped NASA do real science on the moon.
Sep 27, 2015 03:45 PM ET // Elizabeth Howell
Caves and meteorite strikes and more! We've learned a lot since Apollo astronauts walked on the surface over 40 years ago.
Jul 31, 2015 01:00 PM ET // Elizabeth Howell
There are many precious Apollo artifacts at the Smithsonian that need a little tender, loving care.
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