planet

"Ours is a sick planet because of our behaviour on it," he said in a 2014 interview.

Mr Rubio described the excavation as "perhaps one of the most important archaeological sites on the planet", saying it had deep meaning to people in the United States.

The self taught multi-instrumentalist rose from child poverty to international fame - with Miles Davis calling him the most "important musician on the planet".

This is not an unusual event but it is one of the easiest and most satisfying planets to identify with its famous rings.

These polar "geoengineering" techniques aim to cool the planet in unconventional ways, such as artificially thickening sea-ice or releasing tiny, reflective particles into the atmosphere.