Iain Thomson and Shaun Nichols discuss the stories that made the headlines in Silicon Valley this week.
Today's podcast covers the news that Apple's Steve Jobs is to take six months' medical leave to focus on recovering his health; and the appointment of Carol Bartz as chief executive at Yahoo (and the rapid departure of also-ran Sue Decker).
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