A multinational team of archaeologists may have uncovered the sanctuary of Samian Poseidon during excavations in the foothills at the ancient acropolis of Samicum in Greece.
The fall of Constantinople marks the end of the Byzantine Empire (and effectively the end of the Roman Empire) when the city was captured by forces of the Ottoman Empire in AD 1453.
Scientists have discovered a 31km wide impact crater beneath the Hiawatha glacier in Greenland. The discovery, published in Science Advances, was made using airborne radar surveys which unveiled a circular bedrock depression beneath the ice.