According to the Japan Broadcasting Association (NHK) on January 21, at about 8:30 p.m. local time on the 20th, a large fireball appeared over the Kanto, Tokai and places in Japan, and this fireball disappeared into the night sky after crossing the sky, and the whole process lasted for several seconds.
At about 8:30 p.m. local time on January 20, 2021, a large fireball appeared over the Kanto, Tokai and areas in Japan, and this fireball crossed the sky and disappeared into the night sky, the whole process lasted for several seconds. Image source: Screenshot of the NHK video
According to reports, because the time is not too late, people in many places have witnessed the spectacle of "fireballs" crossing the night sky, which once became a hot topic on social media.
Fujii Daichi, who specializes in astronomical research at the Hiratsuka City Museum in Kanagawa Prefecture, said it could be that fragments of asteroids and other materials burned after entering the Earth's atmosphere, forming a sparkling "fireball."
Fujii also said that "compared to ordinary meteors, this 'fireball' is slower and brighter than moonlight."
Source: China News Network