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Its launched by hand, its completely solar powered and in theory, it may be able to stay up here for months. I was last at zephyr s base in farnborough in the uk in 2018, when it had just stayed aloft for very nearly 26 days. Since then, its done 64. So, this is how it works. During the day, the sun hits the solar panels, which charge the batteries and power the propellers, and the plane climbs to 75,000 feet. When the sun goes down, the batteries completely take over. The propellers do slow down and the plane does lose altitude. The trick, though, is to make sure youre still above 60,000 feet by the time the sun comes up the next morning and the process can start again. So, will the entire wing be covered with solar cells, every single square centimetre, as much as you can in solar . Actually, the solar array that we use now typically is so efficient that we dont tend to need to do complete coverage. Really . Yeah, we can actually recharge the batteries most normal days by lunchtime.
northern england, more cloud and the odd shower or a splash of rain. i will have all the details later. it s tuesday 25th june. the bbc has been told that the gambling commission is considering whether more police officers are involved in alleged betting on the date of the general election. four conservatives and a police officer assigned to the protection of rishi sunak are known to be facing inquiries. scotland yard has denied a report that it leaked the names of some of those under investigation. here s our political correspondent, iain watson. did you have inside information when you placed your bet on the election date? i made a statement. it s been nearly two weeks since this aide to the prime minister who s also a conservative candidate said he d made a huge error ofjudgement in betting on the date of the general election. another candidate and two members of the conservative party staff are also being investigated by the gambling commission. last night, interviewe