Rosalie Marshall outlines the key headlines this week, including Oracle's purchase of Sun Microsystems, Autonomy and Apple financial results, the Budget's commitment to technology and news from the RSA Conference 2009.
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