Euclid 'dark universe' telescope's vision restored by deicing campaign

Euclid 'dark universe' telescope gets de-iced from a million miles away

In 1611, Johannes Fabricius and his father observed sunspots directly through a telescope shortly after sunrise or before sunset. They discovered that the Sun rotates by recording how sunspots moved around

As scientists find real exoplanets, sci-fi writers change their vision of alien worlds