Tsar's daughter may, after all, have escaped the execution which wiped out the royal family, says new book.
Living bacteria found in permafrost - '3.5 million years old' - is 'scientific sensation' which allows 'mice grannies' to reproduce.
Culture on edge of Siberia was 'as advanced' as in Middle East, then considered to be the apex of development.
She has lived in the wilderness for 71 years but famous Old Believer faces the cameras to deliver world a message for first time.
Tigre de Cristal under fire for 'abusing' rare big cat to promote gambling revolution.
Reindeer herders find more craters in the far north in a deepening puzzle for scientists.
The senior politician called for a change of identity for the vast eastern third of Russia, as the country angles itself towards Asia.
Ahead of the Winter Olympics in Sochi, the flame will twice cross Siberia, once from west to east, then east to west.
But has he put his Big Foot in it? Professor Valentin Sapunov hits the headlines round the world with the claim.