Today’s physics news: Friday, 11 September

Using gravitational tubes to surf space

Talking at the British Science Festival, Professor Shane Ross from Virginia Tech University explained how the gravitational pull between celestial bodies could be harnessed for space travel.
The Times

Government’s new energy adviser comes out punching

The Government’s new energy adviser, David Mackay, has told the BBC that the UK could face blackouts by 2016 if initiatives to bring green energies are not brought on-stream faster.
BBC News

Exam marks to be ‘overhauled’

A House of Commons select committee report on inconsistencies in university standards has prompted a review of the way university degrees are marked.
The Telegraph
The Independent