SoT 127: There was supposed to be an Earth-shattering kaboom!

Launch of the MAVEN probe to Mars, to investigate what happened to the red planet's atmosphere.

Richard Lenski's long-term evolution experiment shows no sign of stopping. One of the longest continously-running scientific experiments demonstrates that bacteria evolves and at an increasing rate.

The 'clean-rooms' where spacecraft are built are  the most sterile places we can make. But a new species of bacteria has been found in two such clean-rooms - not exactly thriving, but not dead either...

It's well established that modern dogs are an evolutionary off-shoot of wolves, but there's a lot of debate about when and where they branched off. With theories suggesting China, Europe and the Middle East as being the sites of the separation, it's an ongoing question.