This week: Italian scientists found a body of liquid water on mars using radar; a new study suggests that while dogs do feel empathy for us, training them to be therapy dogs doesn’t make them care more, it makes them more obedient; and research shows that military training can result in traumatic brain injuries even outside of combat.

Links:

http://www.sciencemag.org/news/2018/07/liquid-water-spied-deep-below-polar-ice-cap-mars

https://hub.jhu.edu/2018/07/24/dogs-comfort-owners-canine-psychology/

https://www.npr.org/sections/health-shots/2018/07/25/632243103/marines-who-fired-rocket-launchers-now-worry-about-their-brains

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