'Green' satellite calls home
Europe's largest and most expensive Earth-observation satellite delivers its first images to scientists.

Envisat in pictures
Europe's sends up an eight-tonne satellite to monitor the health of the planet.

'Green' satellite primed for blast-off
A last-minute technical glitch fails to halt the countdown for the launch of the Envisat Earth-observation satellite.

Space diary: Final preparations
The builders of Europe's biggest ever Earth-observation satellite, Envisat, look forward to launch time.