The Big Takeaway From I/O:

Google has finally evolved as a product company.

Android Now Has Over 1B Active Users, Up From 538M Last Year

The number of monthly active Android users has doubled every year, Google said.

A Private Mars Mission Intends To Get Samples Of Mars Rock Before NASA Does

NASA has a plan to get us to Mars, but even getting samples of rocks back from the red planet could take decades.

Hurdles For Attempting To Reduce Excess Carbon Or Feed The People

Ocean iron fertilization helps restore fish populations and captures excess carbon from the atmosphere.

Health Group Calls For 'sugar Tax' To Cut Child Obesity

A "sugar tax" should be introduced by the UK government to help curb obesity in childhood, a campaign group says.