Observer’s guide to the planets

Many birds have fabulous plumage to attract mates or send warning messages. Some of the colours in their feathers are produced by microscopic structures on the feather surface that absorb and reflect

After spending over a decade mapping our Milky Way, the European Space Agency’s Gaia satellite is now being put into retirement. The spacecraft has almost depleted its reserves of the cold nitrogen ga

Amazing answers to your curious questions

In the works of Plato, a Greek philosopher who lived around 2,400 years ago, the island of Atlantis was said to have been drowned in the Atlantic Ocean after the hubris of its people angered the Gods.