Here are some of the most interesting science news articles I read this week:
Smartphone apps can reduce depression
Solidarity between good and justice keeps a society together
Highest-energy cosmic rays have extragalactic origin
Exercise can make cells healthier, promoting longer life
Patch which could improve healing and reduce scarring
Blocking the "love hormone"
Gravitational waves from a binary black hole merger observed by LIGO and Virgo
Have a good weekend, and see you Monday!