Tens of kilometers above Earth's surface, high-energy particles from outer space constantly strike the atmosphere, creating showers of energetic secondary particles that rain down from the sky.

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11 P.M. NEW TONIGHT. ROADS ARE BACK OPEN IN SACRAMENTO AFTER A CRASH INVOLVING A SACRAMENTO POLICE VEHICLE. THIS HAPPENED AT SAN JUAN AND TRUXEL ROAD ROADS IN THE SOUTH NATOMAS AREA AND KCRA 3’S ...

A woman who built her own aircraft at just 12 could dethrone Albert Einstein as the greatest mind of all time — and she doesn't "want to make billionaires richer." 32-year-old Sabrina Gonzalez ...

The chemistry of high-performing groups is no longer a mystery. by Alex “Sandy” Pentland If you were looking for teams to rig for success, a call center would be a good place to start. The skills ...