Following the water on Mars has long been a strategy to try to understand the planet's past potential for life.

BBC: Curiosity Mars rover eyes rock drill site

Micro-organisms on Earth are much more common in fresh water than acidic water, and so rather than Mars just having been a potential haven for some extreme forms of life, Curiosity's discovery means that Mars had -- and still preserves evidence of -- environments that were habitable for an enormous variety of micro-organisms that thrive on our own planet.

CNN: Have a drink on Mars

It's the most challenging adventure I've ever taken in my life and has the potential to be bigger than everything I've ever done.

FORBES: Calculated Risk

Although the indictment's allegations are different, they are "gravely serious offenses" that carry a potential penalty of life imprisonment, prosecutors said.

CNN: Specter launches probe of handling of case

"This baker's dozen of UTCs will specialise in skills from engineering to life sciences and I am convinced that they have the potential to change the lives of thousands for the better, " he said.

BBC: Free schools statement: Gove announces new wave of schools