A makeshift memorial to the victims of the terrorist attack in Barcelona. Police killed five men August 18 believed to have been involved.
AP Photo/Manu Fernandez
With terrorists striking again in Spain and in Finland, one cannot help but ask -- again -- why people want to follow the Islamic State. Some new theories are emerging.
What’s the role of faith in service?
European Commission DG ECHO
Religious values, deeply rooted in texts, serve as an important motivator for giving. Religious Americans volunteer more, give more, and give more often.
A statue of a Confederate soldier nicknamed Silent Sam stands on the campus of the University of North Carolina.
Should they stay or should they go?
Artificial light has transformed the night sky, a change researchers continue to link to health problems.
Fabio Falchi et al
Study uses satellite data to add to growing evidence that nighttime light exposure raises risk of breast cancer, with the strongest link among young women.
Eleven states now have some sort of law permitting guns on college campuses.
Lucio Eastman (Free State Project)
More and more states are passing legislation requiring that students and faculty be permitted to carry concealed weapons on campus. But shouldn't universities have a choice when it comes to campus safety?
March for Science, Washington, D.C., April 29, 2017.
Why is it so hard to reach consensus about how to slow climate change? Multiple time lags get in the way: some make it hard to convey the risk, while others prolong the search for solutions.
Polygamy advocate Brady Williams talks with his five wives during an interview at their home in a polygamous community outside Salt Lake City.
AP Photo/Rick Bowmer, File
Joseph Smith, founder of Mormonism, taught that a righteous man could help numerous women and children go to heaven by being 'sealed' in plural marriage. Norms have been revised, but tensions remain.
Is it safe to cross?
Duke Humans and Anatomy Lab
Pedestrians ensure their safety by making eye contact with human drivers. Autonomous cars will have to communicate with nearby people in other ways.
Ryan Kelly’s iconic photograph of the moment that James Fields’ car plowed into a crowd of protestors in Charlottesville, Virginia.
Ryan M. Kelly/AP
Ryan Kelly's iconic photograph from Charlottesville evokes a 'Unite the Right' moment from 1937 – and the anti-war masterpiece by Picasso that emerged from it.
Did Trump’s rhetoric played a part in radicalizing the far-right protesters in Charlottesville?
AP Photo/Steve Helber
Trump is a master of using anger to motivate his base. An anti-terrorism researcher explains how to stem the tide.
Senate Majority Leader Mitch McConnell at an Aug. 1 press conference, the first he held after the defeat of his health care bill.
AP Photo/J. Scott Applewhite
With Obamacare in peril and no health care plan in sight, it's logical to ask whether states could design their own single-payer health insurance plans. Efforts in California show why it's unlikely.
Students at Ponar Forest in Lithuania, where Nazis massacred many Jews.
Daniel B. Bitran
In recent years, the number of people traveling to sites of death, natural disaster, acts of violence, tragedy and crimes against humanity has dramatically increased. Is it immoral?
A 1765 painting of Helios, the personification of the sun in Greek mythology.
The sun was worshiped as a deity in many cultures – and witnessing it get extinguished could be a particularly terrifying event.
A pedestrian walks past a Chicago Sun-Times newspaper box.
AP Photo/M. Spencer Green
Giving labor unions a financial stake in a company such as a newspaper can offer unique advantages that could benefit employees, society and the bottom line.
FirstNet could relieve emergency workers of having to carry multiple radios and other communications devices.
AP Photo/Ric Francis
A multibillion-dollar effort is just beginning to build an all-new nationwide wireless broadband network for emergency responders. How will it work, why do we need it and how will it last 25 years?
One of the impacts of climate change is an increase in the frequency of heavy rain events.
AP Photo/David J. Phillip
The Trump administration's decision to dismiss or accept a government-prepared climate report will have life-or-death consequences, says a climate scientist involved in the previous report.
Venezuela’s President Nicolas Maduro (center) attends a graduation of National Armed Forces.
Miraflores Palace/Handout via REUTERS
The loyalty of Venezuela’s soldiers is getting shaky. History shows from the Arab Spring to Latin American coups, when the military withdraws support for a leader, a fall from power is imminent.
Customers shop during at the AIDS Healthcare Foundation’s Out of the Closet thrift store in Columbus, Ohio.
Over the past 100 years, discarded and secondhand goods have been used by artists to reject mainstream aesthetics.
Elvis Presley pictured on a Forever stamp in 2015.
Perhaps no one entertainer from the 20th century influenced pop culture as much as Elvis. And yet, by his own admission, the King turned to food for comfort. Here's why food takes on added meaning.
Lord Louis Mountbatten, viceroy of India, met with Indian leaders to discuss partition.
The partition of India led to a genocide that was unprecedented in scale. How far was one man, Lord Mountbatten, who hurriedly drew the new borders, responsible?
North Korean leader Kim Jong Un is applauded at a performance in Pyongyang.
KRT via AP Video
A former Department of Defense and State Department official explains why a hardline approach on North Korea will likely fail, as it did with Iran.
Who’s inside the hoodie?
The Russian cyberthreat goes back over three decades, extends into the country's educational systems and criminal worlds, and shows no signs of letting up.
Plastic trash on San Francisco’s Ocean Beach.
A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.
The Constitution may burst Trump’s threat to withdraw from NAFTA.
AP Photo/Mel Evans
As the Trump team begins renegotiating NAFTA with Canada and Mexico, a key plank in its strategy – a threat to withdraw – may be a hollow one.
Starting a new school can be stressful. But as a parent, you can help.
School can always be stressful, but starting high school for the first time comes with its own fears and anxieties. Here's some simple advice for parents to help their freshmen navigate the new year.