New technology to be tested on heating stations in eastern Russia.
Alexander Chepurnov had already recovered once when he re-infected himself in an experiment.
But how did they get to landlocked Kurgan region, 2,400 kilometres from the nearest ocean?
Mummified potentate and wife were found in burial mound 42 metres in diameter, and they went to the next life alongside 9 geldings, saddled and harnessed.
Russia is poised to present the United Nations with the scientific arguments for extending the continental shelf in the Sea of Okhotsk.
New geological evidence shows polar 'submarine elevations' as 'natural components' of Siberian continental land mass.
100-plus Amur leopards are living in the wild, a rise from only 30, and now they are set to get new protected territory to roam.
Vital for making its waters so 'pure', one theory is that rising underwater methane leaks are killing off the sponge, but is there a silver lining?
The Russian president took part in the 'Flight of Hope', giving a flying lesson to young white cranes ahead of their epic 5,000 km migration.