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New Solar Array

Photo: Astronauts attaching Hubble's new solar array
During the first Hubble servicing mission in December 1993, astronauts installed new solar arrays (left) designed to reduce the thermal "jitters" experienced when the telescope transitioned from cold darkness into warm daylight.
Photograph courtesy NASA

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Interactive Map

Explore the signs of and solutions to the world’s water crisis.

Photo: Rainbow Valley

Photo Gallery

Experience the majestic beauty of Australia’s outback.

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Help conserve the world's natural resources.

The Green Guide

Photo: Green flower

Get tips for helping the environment.