A drug trialled to treat Alzheimers also helps natural tooth regrowth, allowing the tooth to repair cavities.
Of the pulsars discovered, one called J1859-01 is 16,000 light-years away and rotates once every 1.83 seconds. Another, J1931-01, is 4,100 light-years away and rotates once every 0.59 seconds.
California has roughly 6,000 big cats overall, but P-22 is by far the most famous, largely because he lives in inescapable proximity to some 4 million Angelenos. His home, the city’s 4,500-acre Griffith Park, is one of the largest urban parks in America, full of oak trees and shrubland. But his seven-square-mile range is the smallest ever recorded for an adult lion.
The X3 Ion thruster propels spacecraft by accelerating a stream of electrically charged atoms, known as ions. In the recent demonstration the X3 broke records for the maximum power output, thrust and operating current.