Tunguska event

powerful explosion that occurred near the Podkamennaya Tunguska River

river in Krasnoyarsk Krai and Irkutsk Oblast, Russia

periodic comet

world day

Russian mineralogist (1883-1942)

lake in Krasnoyarsk Krai, Russia

1960 film by Kurt Maetzig

2008 single by Metallica

Slovak astronomist and university educator (1927–1994)

Russian astronomer (1906–1984)

1951 novel by Stanisław Lem

2006 video game

is a Japanese super robot anime series created by Takeshi Shudo. It was produced and aired in 1981 in Japan, with a movie special released in 1982 and a film sequel, GoShogun: The Time Étranger or Time Stranger, in 1985. Its title has been variously translated into English as "Demon God of the War-Torn Land GoShogun", "Warring Demon God GoShogun", and "Civil War Devil-God GoShogun", but in the US and parts of Europe it is primarily known as Macron 1, the title of its North American adaptation.

comic book mini-series

episode of The X-Files (S4 E8)

Japanese manga series

2007 novel by Jacek Dukaj

2011 Book by Scott Westerfeld

hypothetical object