Earth’s Oldest Crust Dates to 4.4 Billion Years Ago

Zircon crystals from the Jack Hills of Australia, like the one above, reveal that continents arose just 160 million years after our solar system formed, much earlier than previously thought. PHOTOGRAPH BY JOHN VALLEY, UNIVERSITY OF WISCONSIN-MADISON Dan Vergano National Geographic PUBLISHED FEBRUARY 24, 2014 Australia holds the oldest continental crust on Earth, researchers have…

Through a Glass, Colorfully

“I love walking around my beloved New York City armed with my camera, looking for different and interesting subjects to photograph,” says Your Shot member Ivan Lesica. “On this day, I was walking over the Williamsburg Bridge that connects Brooklyn with Manhattan. Halfway over the bridge I noticed a handmade wooden box painted in bright…

“Motherlode” of Alien Worlds Unveiled

NASA’s Kepler Space Telescope has nearly doubled the number of alien worlds known to humanity NASA astronomers nearly doubled the number of alien worlds known to humanity on Wednesday, reporting the discovery of 715 planets located in nearby solar systems. The discoveries bring the total number of known planets outside our solar system—so-called exoplanets—to roughly…

Gladiator School Discovery-here i thought my school is scary

Archaeologists have mapped an ancient gladiator school, where the famed warriors lived, trained, and fought. Ancient Rome’s gladiators lived and trained in fortress prisons, according to an international team of archaeologists who mapped a school for the famed fighters. Discovered at the site of Carnuntum outside Vienna, Austria, the gladiatorial school, or ludus gladiatorius, is the first one…