Here are some of the most interesting science news articles I read this week:
Dying is happier than you think
Rover findings indicate stratified lake on ancient Mars
"Instantly rechargeable" battery could change the future of electric and hybrid automobiles
Excessive exercise may damage the gut
Finding new homes won't help Emperor penguins cope with climate change
Collateral damage from cosmic rays increases cancer risk for Mars astronauts
Have a good weekend, and I'll see you Monday!