Phil Muncaster takes a look back at the top stories of the past seven days, including Google's Chrome OS plans in the mobile computing space, Oracle snaps up ATG and prime minister David Cameron announces ambitious plans to turn the East End of London into a Silicon Valley for the UK.
Some parts of Atacama have not received rainfall for 500 years - but a sudden deluge of water upset the Desert's delicate biological balance
Spitzer Space Telescope could not spot Oumuamua, suggesting that it is actually pretty small
Greenland crater one of the 25 largest impact craters on Earth
This long-sought progenitor star was identified in an image captured by Hubble in 2007