
Riddle solved: Why was Roman concrete so durable? | MIT News
The ancient Romans were masters of engineering, constructing vast networks of roads, aqueducts, ports, and massive buildings, whose remains have survived for two millennia. Many of these structures were built with concrete: Rome’s famed Pantheon, which has the world’s largest

James Webb Space Telescope captures image of cataclysmic space explosion
Supernovae, or the explosions of stars, are some of the most dramatic events in space. The James Webb Space Telescope has captured details of the Cassiopeia A, the remnant of one such explosion.
Cassiopeia A, or Cas A, is a
Hoax Active Shooter ‘Swatting’ Calls Are Tormenting Schools. Police Can Do Little to Stop Them
A student from Oakland Catholic High School receives comfort following the evacuation of her school after a hoax call about an active shooter on March 29 in Pittsburgh, Pennsylvania. Credit