In the latter years of the 18th century, astronomers William and Caroline Herschel began to count stars. William called the technique "star gauging" and his aim was to determine the shape of our Galaxy.
On 14 November 2017 at about 16:45 GMT a football-sized meteoroid entered Earth's atmosphere about 50 km northeast of Darmstadt, Germany. It created a bright fireball in the sky, which was seen by thousands of people in Germany, ...
These striking features on Mars were caused by the planet's crust stretching apart in response to ancient volcanic activity.
Climate scientists studying three decades of ozone measurements from seven satellites see a positive trend in global recovery thanks to international efforts to curb ozone-depleting substances.
An expedition of astronauts, planetary scientists and engineers is off to Spain's Canary Island of Lanzarote to learn best how to explore uncharted planets. The training will equip space travellers with a geologist's eye.
From the Salar de Atacama salt flat in the east to the Cordillera Domeyko mountains in the west, Sentinel-2 takes us over part of the Atacama Desert in northern Chile.