A "supergiant" gas field holding the equivalent of 5.5bn barrels of oil has been discovered off the coast of Egypt, the largest ever find in the Mediterranean.
A rocket mission to put a new spacecraft in orbit for London-based Inmarsat has been declared a success. The Russian Proton vehicle ejected the satellite high above Papua New Guinea in the early hours of Saturday (GMT).
An office worker looks at the FTSE 100 index, which lost 6.7% during August, its worst performance since May 2012. Photograph: Lauren Hurley/PA.
The abuse of tipping by restaurants is to be the subject of an investigation launched by Business Secretary Sajid Javid. It could lead to a cap being introduced on the proportion of tips restaurants can withhold from staff.
Costs have been driven down - a solar panel has dropped by nearly two thirds since 2011, and the price of wind power has halved in the past four years - making the energy source increasingly attractive to the general public.