Astronauts Replace Spent Station Tank
The astronauts spent six hours and 45 minutes outside the station removing a spent refrigerator-size tank and replacing it with one full of pressurized nitrogen, in addition to performing other tasks. nytimes.com
Barrier will protect London to 'end of century'
The Thames Barrier will continue to protect London from storm surges for the rest of this century, even sea level rises faster than expected, says the Environment Agency ft.com
First S Korean astronaut launches
South Korea's first astronaut, Yi So-yeon, blasts off for a sojourn on the International Space Station. news.bbc.co.uk
Explainer: ACTN3
The ACTN3 gene comes in two variants and the test developed by the Australian biotech firm Genetic Technologies distinguishes between them guardian.co.uk