What is Time Dilation?

By Fraser Cain - July 01, 2016 02:37 PM UTC | Physics
One of the strangest implications of Relativity is the concept of time dilation; how people moving at different speeds will experience different amounts of time. Dr. Brian Koberlein helps us figure it out.
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NASA Completes Awesome Test Firing of World's Most Powerful Booster for Human Mission to Mars - Gallery

By ken-kremer - June 28, 2016 04:55 PM UTC | Space Exploration
The world's most powerful booster that will one day propel NASA astronauts on exciting missions of exploration to deep space destinations including the Moon and Mars was successfully ignited this morning, June 28, during an awesome ground test firing on a remote mountainside in Utah, that qualifies it for an inaugural blastoff in late 2018.
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