Solar plane on journey across US
The airplane entirely powered by the sun lands in Washington after a flight from St Louis
US regulators opens probe into whether a Lockheed-Boeing joint venture flouted antitrust laws
Analysis of a Martian rock reveals the red planet might have had life form in its early history
Firms can rely on unmanned aircraft to detect pipeline faults, at a fraction of the cost of piloted helicopter flights
The rocket will carry three astronauts to an experimental space module
A large asteroid accompanied by its own small moon was approaching Earth
