of frost so that could just be frost, it could be the result of a crack, so the teams are looking into that, but also an engine issue. engine number 3 on the core stage, the core stage is that orange huge middle part of the rocket that you see. one of the four engines is not performing as expected right now. as you pointed out there is a two-hour launch window but all of these delays have added up so it s unclear right now if the teams will be able to troubleshoot these issues but also if they would be able if they are able to troubleshoot these issues if they will be able to make up that time and make up make this launch window today. if they are not able to make this launch window there is another potential launch date of september 2nd, also a backup to the backup of september 5th. i want to remind our viewers that this is a test launch here and that rocket behind me has never flown. so there have been several issues that nasa has dealt with over the years in terms of,
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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.