| The 1st microsecond of the Big Bang | | | What was the universe like moments after the Big Bang? Cosmologists probe the basic physics of that earliest time using particle accelerators. The biggest one in the world is the Large Hadron Collider at CERN, a tunnel 17 miles (27 km) in circumference, deep underground beneath the border of France and Switzerland. Researchers now say they've used this tool to investigate a specific kind of plasma present during the first millionth of a second - aka the first microsecond - of the Big Bang. They said this plasma was the first matter ever to be present in our universe. And, they said, it had liquid-like properties. Read more. | | |
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| What we're reading Remembering Mt. Pinatubo | | | From NASA Earth Sciences ... The 2nd-largest volcanic eruption of the 20th century occurred at Mount Pinatubo in the Philippines on June 15, 1991. By far the largest eruption in the past 100 years to affect a densely populated area, Pinatubo produced high-speed avalanches of pyroclastic flows and a cloud of volcanic ash hundreds of miles across. Meanwhile, Typhoon Yunya brought cascading hazards such as flooding and fast-moving lahars when it arrived within 50 miles (75 km) of the volcano during the eruption’s peak activity. This post is a conversation with NASA Disasters associate program manager John Murray, who was there. Read more. | | |
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