The year is officially half over! Hard to believe, isn't it?
Here are some of the most interesting science news articles I read this week:
Polar bear outlook favorable under certain scenarios
Cannabinoids remove plaque-forming Alzheimer's proteins from brain cells
Seeds of black holes could be revealed by gravitational waves in space
A shampoo bottle that empties completely--every last drop
Researchers trace Mercury's origins to rare meteorite
There were also lots of interesting articles this week on iflscience, but it's getting late and I don't feel like linking to each one individually.
Have a good weekend, everyone! I plan to post my semiannual reading report on Monday, so if you have some time while celebrating the 4th, swing by and take a look.