Qantas Airways is betting that science can make the world's longest flights feel less punishing - unveiling plans for a "wellness zone," extra legroom, specially timed meals and animated lighting on its non-stop Sydney-London services due to launch next October.The Australian carrier, which plans to follow up with non-stop flights from Sydney to New York, this week offered detailed briefings on the science of roughly 20-hour journeys as it looks to convince passengers to pay a premium for avoiding a stopover."It's a major biological challenge crossing all these time zones - seven to nine …READ FULL ARTICLE