What are Leptons?

By Matthew Williams - December 01, 2016 04:35 PM UTC | Physics
According to the Standard Model of Particle Physics, all matter is composed is hadrons (which are made up of elementary particles) and leptons, which are elementary particles themselves.
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Atlas V Fire and Fury Get Gorgeous GOES-R to Geostationary Orbit; Photo/Video Gallery

By ken-kremer - November 24, 2016 11:41 PM UTC | Missions
KENNEDY SPACE CENTER, FL - The fire and fury of the mighty Atlas V got the gorgeous NASA/NOAA GOES-R weather observatory to geostationary orbit just days ago - as a 'Thanksgiving' present to all the people of Earth through the combined efforts of the government/industry/university science and engineering teams of hard working folks who made it possible.
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What If We Do Find Aliens?

By Fraser Cain - November 24, 2016 08:38 PM UTC | Astrobiology
We've been so busy wondering how we'll find aliens that we never stopped to consider what we'll do if we actually encounter them. How does an alien discovery get communicated to the media? Who's responsible to craft a response?
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