Permanent markers aren’t so permanent after all. All that’s required to peel the ink from glass is the surface tension of water and a little patience, scientists report. When glass marked with permanent ink is slowly dipped in water, the writing lifts off the glass and floats intact atop the water. For the first time, […]

The largest study yet of the most energetic particles to slam into Earth provides the first solid clues to where the particles come from. Using a giant array of tubs of water, scientists found that these ultrahigh energy cosmic rays mostly originate outside the Milky Way. An international team analyzed about 12 years of data […]

Hackers, take notice: Ultrasecure quantum video chats are now possible across the globe. In a demonstration of the world’s first intercontinental quantum link, scientists held a long-distance videoconference on September 29 between Austria and China. To secure the communication, a Chinese satellite distributed a quantum key, a secret string of numbers used to encrypt the […]