For an even smaller bite on the beach, buy a pack of Globos -- light, puffed O-shaped biscuits that come sweet or salty.

BBC: A seaside taste of Rio de Janeiro

Evidence of past explosions is revealed in the image - huge lobes of 20-million-degree Celsius gas (the red loops in the image at approximately the 2 o'clock and 7 o'clock positions) that extend over dozens of light-years on either side of the black hole.

BBC: Black hole 'on a diet'

Shadow Minister for Health Stephen O'Brien said the report shed light on the delayed and "ill-planned" NHS IT programme which the government had "constantly tried to shield from public scrutiny".

BBC: NEWS | Health | Major NHS IT upgrade hit by delay

Nonetheless, Mr O'Keefe and Mr Koptev have given the green light to a programme to build a US-Russian space probe for the exploration of Mars.

BBC: Mars rover (Nasa)