Today’s physics news: Friday, 4 June

Mars mission in a Moscow hangar is no joke, say astronauts
Its critics have suggested it amounts to little more than sitting inside a giant tin can in a Moscow hangar but as the six volunteers sealed themselves inside a simulated mission to Mars, scientists insisted they were embarking on an unprecedented experiment that was no laughing matter.

Guardian
BBC
Independent 
 
 
SpaceX Falcon 9 rocket ready for first launch
A rocket that may one day launch astronauts to the space station is set for its maiden flight from Florida.

BBC