"Then the polar night is the exact opposite!" Ling Qingxue said with great interest. "The sun never rises at all?"
"Actually, the sun begins to set before it even reaches the horizon," Xia Ruofei said. "After the autumnal equinox, the polar night phenomenon begins to appear at the North Pole. As time passes, the scope of the polar night grows larger and larger. It reaches its maximum on the winter solstice, covering the entire Arctic Circle. Then, the scope gradually shrinks until it reaches its minimum on the vernal equinox."
"Nature is so amazing!" Qingxue said, looking up at the pitch-black sky.
After giving Qingxue a brief lesson in geography, Ruofei noticed that they had arrived near the green touring immortal abode.
He steadily reduced the flight speed and altitude of the black Phoenix. Glancing at the satellite navigation device, he found that they were indeed very close to the North Pole.
This green Immortal Island could really move!
