Organic compounds found by Saturn moon mission news.sky.com

Scientists have urged caution after finding organic compounds around Saturn's moon Enceladus.

Enceladus was discovered by the British astronomer William Herschel in 1789 using what was then the largest telescope in the world, measuring 1.2m across.

Almost 230 years later, the Cassini spacecraft conducted another fly-past of its southern pole, travelling through one of the mysterious cryovolcanic plumes which had been discovered to be erupting from the moon.