One of the most recognizable constellations in the sky is Orion, the Hunter. Among Orion's best-known features is the "belt," consisting of three bright stars in a line, each of which can be seen without a telescope.
Nov 12, 2015 in Astronomy
Anti-storm barriers, 17,500 kilometres (10,800 miles) of dykes and dunes and a spirit of constant innovation to hold back the seas.
Oct 27, 2015 in Environment
This image from Sentinel-2A on 13 August features Cairo, in Egypt.
Nov 06, 2015 in Earth Sciences