LaFond sails to world-leading 15.25m in Zagreb - worldathletics.org

Reaching another star within a practical amount of time will require something far more capable than chemical rockets. One of the leading ideas is a solar sail, a large reflective structure that can be pushed by light. If extremely powerful lasers are aimed at such a sail, they could accelerate it to speeds well beyond what current propulsion systems can achieve. But there may be an unexpected problem once a lightsail begins traveling at a significant fraction of the speed of light. According to a new paper on arXiv by Chao Shen and Jiaze Li of the Harbin Institute of Technology, the same light used to propel the sail could eventually produce a drag effect.

The man accused of killing NHL star Johnny Gaudreau and his brother Matthew will stand trial early next year.

In the eastern Pacific, where El Niño tends to strengthen hurricane activity, it has been a very active season so far. There have been 22 named storms and 12 hurricanes, including 10 major hurricanes. This is already above the number that would typically develop in the whole of an average season, with two months left to go until its end. Here, El Niño provides the ingredients of higher ocean temperatures and weaker winds high in the atmosphere, making it easier for storms to gain strength. Hurricane Polo is one such example of this. The hurricane experienced rapid intensification, producing wind gusts of 180 mph (285 kmh), fueled by the very warm waters produced by El Niño. Polo was also one of three hurricanes churning away in the same basin at the same time, along with Odalys and Nolo. Moreover, it has happened twice now in the space of a month. Earlier in September, the energy produced by exceptional ocean heat resulted in three simultaneous hurricanes in the central and eastern Pacific: Lowell, Karina and Marie. Until this year, the last time there had been three Pacific hurricanes at the same time was 2015. In contrast, the Atlantic Ocean has remained eerily quiet.

Russia launched new attacks on Ukraine's energy infrastructure using ballistic missiles and jet-powered drones, Ukrainian President Volodymyr Zelenskyy said Monday, adding that Kyiv again received no early warning of the attack from partner countries that previously shared their intelligence. Zelenskyy is grappling with recent Washington moves benefitting Russian President Vladimir Putin, including waiving U. S. sanctions on Moscow and signing a deal to import diesel from Moscow. Moscow and Kyiv, meanwhile, were discussing the possible evacuation of the Russian-occupied front-line city of Oleshky in the southern Kherson region, where about 2,000 people have been cut off from food and medical supplies for months, according to a Ukrainian human rights official. Zelenskyy said speed restrictions are still in place on Kyiv's use of the military-grade version of U. S. company SpaceX's satellite internet service. Full service was being restored at the end of last week, but Zelenskyy said Monday that the restrictions are still slowing Ukraine's drones along the front. People carry their belongings with them, after leaving their office in Kyiv, following a Russian air attack on Monday.