Faster long-distance data transmission is a step closer, according to a team of Chinese scientists who say they have transmitted high-definition video signals over more than a kilometre using terahertz wireless communication technology. The experiment, led by Purple Mountain Observatory of the Chinese Academy of Sciences (CAS), was the world’s first successful application of high-sensitivity…
I first started taking the plane in the early 1990s. Compared to the crowded trains with hard seats that I usually took, flying was not only faster but also more pleasant. Stewardesses served tasty meals and drinks, free of charge. There wasn’t much in-flight entertainment, but a variety of newspapers were offered, and they were…
SpaceX, which owns the world’s fastest-growing satellite broadband network, Starlink, told the regulator that these “antiquated power restrictions” were unfit for “the modern space age”. It went on to charge that the international process governing the rules had been hijacked by an alliance between the operators of older, geostationary systems and “America’s staunchest adversaries”. At…
A billionaire spacewalker returned to Earth with his crew on Sunday, ending a five-day trip that lifted them higher than anyone has traveled since NASA’s moonwalkers. SpaceX’s capsule splashed down in the Gulf of Mexico near Florida’s Dry Tortugas in the predawn darkness, carrying tech entrepreneur Jared Isaacman, two SpaceX engineers and a former Air…