The astrophysicist tweeted that, “often our emotions respond more to spectacle than to data” in the wake of two mass shooting that left at least 29 dead Source

At least 9 people killed and 27 people injured in Dayton shooting; U.S. mourns victims of mass shootings in El Paso and Dayton Source

America’s medical community has a long history of trying to improve public health. But now it’s looking to end gun violence. Dr. Jon LaPook reports. Source

A father who lost his son during the Parkland massacre has turned his grief into a singular mission. Joaquin Oliver uses the power of his art to advocate for gun control. Jonathon Vigliotti reports. Source

All over America today, people prayed for the neighbors we lost in El Paso and in Dayton. And for the families we left behind. Source

Sandy and Lonnie Phillips have gone to the site of nearly every mass shooting since their daughter’s death to support people affected by the tragedies, drawing from their own personal experiences Source

A South African gold mine that goes two miles beneath the Earth’s surface holds far more than just precious metals Source

Belgian biologist Gaetan Borgonie found animal life 2 miles below the Earth’s surface. He believes if life can exist there, it might exist on Mars. Source

Some estimates put the number of assault-style rifles in circulation at around 15 to 20 million. Today, the head of the nation’s fourth-largest law enforcement agency, Los Angles County Sheriff Alex Villanueva, called for an end of the manufacture and sale of these types of weapons. Kris Van Cleave reports. Source

Donald Trump has been following developments in El Paso and Dayton. In a tweet, he called the two attacks “an unspeakable act of evil.” Nikole Killian reports. Source