A solar-powered airplane finished crossing the United States on Saturday, landing in New York City after flying over the Statue of Liberty during its historic bid to circle the globe, the project team said. The spindly, single-seat experimental aircraft, dubbed Solar Impulse 2, arrived at New York's John F. Kennedy International Airport at about 4 a.m. local time after it took off about five hours beforehand at Lehigh Valley International Airport in Pennsylvania, the team reported on the airplane's website. Such a pleasure to land in New York! For the 14th time we celebrate sustainability," said the project's co-founder Andre Borschberg on Twitter after flying over the city and the Statue of Liberty during the 14th leg of the trip around the globe. The Swiss team flying the aircraft in a campaign to build support for clean energy technologies hopes eventually to complete its circumnavigation in Abu Dhabi, where the journey began in March 2015. The solar cr...
Ovarian tumours are often deadly as they are caught too late. A 14-year study on 200,000 women, published in the Lancet, has been welcomed as a potentially landmark moment in cancer screening. But the researchers and independent experts say it is still too soon to call for mass screening because of concerns about the analysis. Ovarian cancer is difficult to pick up as symptoms, including abdominal pain, persistent bloating and difficulty eating, are common in other conditions.The UK Collaborative Trial of Ovarian Cancer Screening is one of the biggest clinical trials ever conducted and is supposed to give the definitive verdict on screening. It monitored levels of a chemical called CA125 in women's blood. Doctors tracked changes in the levels of CA125, which is produced by ovarian tissue, over time and if levels became elevated then the women were sent for further tests and ultimately surgery. The results are now in, but the interpretation is a ...