The Mi-8 training flight ‘exploded’ after slamming into a field with communications antennae at Khabarovsk Disaster Medicine Centre.
Underground cryostorage facility will become largest in world, using Siberia's permafrost to naturally safeguard food and plants for 100 years.
The worker in the Republic of Tuva got trapped under a concrete slab while helping to dismantle an old asbestos plant.
After archeologists dug up the ancient mummy - preserved in permafrost - natural disasters were unleashed in Siberia, court told.
Satellites show giant hole ringed by 20 'baby craters'.
Premier Dmitry Medvedev launches inquiry into the tragedy which leaves almost 600 injured.
His cries woke other participants, and one shot the bear.
Leading expert assesses the risk of 'waking up' this deadly disease currently eradicated, and warns that rising Russian levels of HIV brings a far greater risk.
Doctors fought in vain to save Alexander Stakhanov, 35, on the frozen surface of the world's deepest lake.