Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.
Made from melted gold and silver jewellery belonging to 147 Yakutian fans.
Royal discovery made after 99-year-old code is broken by Siberian mathematics genius.
New shipping link symbolises developing Arctic economy which can avoid eco-damage, says Putin.
Geologist who built ramshackle hut 100 metres from Agafya Lykova passes away and is buried near the last place he called home.
International researchers have gleaned these extraordinary hidden scientific secrets by drilling 318 metres into a unique lake in northeastern Siberia.
'Scary' scenes as fumes from burning forests cover Lake Baikal, with people - and bears - fleeing 'Apocalypse'.
Girgory Pasko struck on head in Siberian city after arriving to hold seminar for local reporters and bloggers.
Radiation, chemical and biological forces tackle two million tonnes of toxic chemical waste with huge mercury stockpile and oil poisons.