Astrophotographers help crack mystery of ‘sprite fireworks’
On May 19, 2022, two astrophotographers set up near the sacred lake of Pumoyongcuo on the southern Tibetan Plateau captured a ...
Surprisingly, some Dyson spheres and ringworlds can be stable
In the realm of science fiction, Dyson spheres and ringworlds have been staples for decades. But it is well known that the ...