Â鶹Éç

This week ‘Discovery’ investigates mysterious patches of light or colour sometimes seen on the moon’s surface. They have been called transient lunar phenomena. Some scientists wonder whether they’re evidence that something volcanic stirs beneath the Moon’s dead face. To many others, they are just tricks of the light.

Andrew Luck-Baker visits a new robotic telescope on the roof of a New York university designed to establish the truth about these alleged lunar gas eruptions