Ghostly aerial glows delight skywatchers across the Northern Hemisphere this week.
NASA’s Kepler mission has found three planets smaller than Earth circling a dim, red star.
Amazing view from space shows Livingston and Deception Islands, in Antarctica.
One of the Milky Way’s youngest and most active stellar nurseries for massive stars.
Dramatic image of a volcanic eruption in the middle of one of the world’s busiest waterways.
Paradise of low islands and coral atolls in the Indian Ocean, the barely inhabited Cocos (Keeling Islands).
NASA space telescopes help spot a rare galaxy, as it was when the universe was young.
Star is spitting out material in a “jet” 400 million million kilometres in length!
When and where to see the Moon and planets this month.