Nuke-test pollution
Radioactive plutonium particles from US nuclear tests in the Pacific are washing up onto the shores of Japan. Particles detected in soil at Sagami Bay, about 50 kilometres south-west of Tokyo, match fallout from nukes detonated from 1946 to 1958, researchers at the National Institute of Radiological Science in Chiba-shi said on Monday.
Star architects
The most imposing stellar observatory known to have been created by the Incas has been discovered in the Huanuco province of central Peru. Called Ushnu, the stone structure is 48 metres long, 32 metres wide and 4 metres high, archaeologists announced on 30…
