The ‘Halo Drive’ Would Shoot Lasers at Black Holes to Explore the Milky Way
“If we can’t build something capable of delivering astronomical levels of energy, perhaps we could instead steal the energy from an astronomical object.”
"I found myself staring at a swastika": A Jewish professor's door was spray-painted with anti-Semitic graffiti
The 77-year-old Jewish professor found large red swastikas spray-painted on the door of her office.
Vintage Photos by the NYPD's "Red Squad" Capture a City in Turmoil
A new exhibition traces the social and political upheaval of New York City in the 1960s and '70s through surveillance photos taken by a special police division.