I don't think there's much news that can top the discovery of organic matter and methane on Mars (which isn't life itself, but possible evidence of life). If you're into particle physics, new Higgs Boson observations and new neutrinos might be more your speed. Otherwise, here are some of the (other) most interesting science news stories I read this week:
Scientists develop material that could regenerate dental enamel
Smart containers to reward people for recycling properly
Spooky quantum particle pairs fly like weird curveballs
The psychosocial toll of our increasingly online lives
Growing "green" rice
How do you weigh a galaxy? Especially the one you're in?
Is an immunization for stress on the horizon?
Have a good weekend, and I'll see you Monday!