Top-down artist depiction of a tiny black hole and a pileup of gas and matter swirling toward the center.
The little-known Rossi X-ray Timing Explorer spacecraft was like a Geiger counter for the universe, listening to black holes and zombie stars.
Rwanda’s Genocide Memorial burial site.
As Rwanda marks the 24th anniversary of the 1994 genocide, much more needs to be done to unite the country.
How do survivors find healing? Chum Mey, a survivor of the Khmer Rouge regime, walks past a portrait of Nuon Chea, a former Khmer Rouge leader.
AP Photo/Heng Sinith
The accounts of survivors of Pol Pot's Khmer Rouge show how they were able to find justice and healing by breaking their silence and speaking on behalf of those who were killed.
Stormy Daniels is the rare ‘porn star’ to find success. She was even briefly a Senate contender in 2009.
AP Photo/Bill Haber
Stephanie Clifford may be a 'porn star,' but her success is hardly typical of the vast majority of performers affected by the seismic changes in the industry.
Evidence from countries that execute people for drug offenses shows no relationship between harsh punishment and rates of drug use.
Just seven countries worldwide regularly execute people for drug crimes, most of them authoritarian regimes. Nothing suggests that this brutal policy actually curbs drug use.
Is it going to stop?
In the wake of a self-driving Uber car killing a pedestrian in Arizona, an ethicist examines the state of autonomous vehicle development.
There are nanometals in your washing machine.
Many socks, towels and other textiles are treated with silver nanoparticles to kill germs and odors. When the silver washes out, it can pollute waterways. Two chemists propose a way to collect it from wastewater.
Research suggests long-term academic gains for children when they attend programs where their preschool teachers hold a bachelor’s degree.
Are preschool teachers with college degrees better at their jobs?
Plutôt que d'observer étoiles ou bactéries sur leurs écrans, les chercheurs pourraient utiliser Twitter pour communiquer et chercher des financements.
Beaucoup de scientifiques sont réfractaires à l'utilisation des réseaux sociaux. Pourtant, Twitter peut s'avérer être un excellent moyen de communiquer et même de trouver des financements.
Gates of the Arctic National Park, Alaska. Plants on the Arctic tundra absorb mercury from the air, then transfer it to soil when they die.
How do mercury emissions from industrialized countries reach the remote Arctic? Recent research shows that plants on the tundra absorb mercury vapor through their leaves, then pass it into soil.
Voodoo doll or an illustration of the Republican tax plan on income inequality?
Supply-side economics is the intellectual backbone of the argument that tax cuts for the wealthy will boost business investment, wages and growth. The evidence suggests otherwise.
Mourners embrace at a vigil for Richard Collins III, who was stabbed to death in College Park, Maryland.
AP Photo/Brian Witte
Like the death of Heather Heyer in Charlottesville, the murder of Richard Collins III was a symptom of violent extremism that should be treated accordingly.
Reading to children and talking to them about the story helps them love stories and become better readers.
Parents want to do everything they can to get their kids' school year off to a good start. Here's why talking with them is one of the best ways to do that.
Members of Patriotic Millionaires, whose privileged members advocate for higher taxes on the rich, met with lawmakers in this 2015 photo to discuss legislation to close the carried interest loophole.
When the wealthy become unlikely allies in the fight against inequality, they often take similar steps. It all starts with acknowledging their own privileges.
James Alex Fields Jr., second from left, holds a black shield in Charlottesville, Virginia, where a white supremacist rally took place.
Alan Goffinski via AP
The United States is seeing an uptick in far-right extremist violence. It's time to pay more attention to this scourge and its causes.
People with autism sometimes struggle to tell stories, but there are ways parents can help.
Pressmaster / Shutterstock.com
People tell each other stories every day about the things they've seen and done. For many children with autism, this kind of personal narrative doesn't come easily. Here's how parents can help.
President Jacob Zuma at the opening of the National House of Traditional Leaders in Parliament.
The clash over South Africa's Traditional Courts Bill is essentially about custom and constitutionalism. The government is often seen as pandering to traditional leaders' whims.
President Barack Obama waves as he leaves the Oval Office for the last time.
Evan Vucci/AP Photo
The Trump administration has been trashing Obama's economic legacy lately as it pursues a drastic change of course, but the facts tell a different story.
It’s not always obvious where a new technology will end up.
NIH Image Gallery
A scientific breakthrough in a vacuum may be free of ethical implications. But many developments can be used for good or evil, or both. There's a fine balance on what to control and to what extent.
Frank Tilley/The Victoria Advocate via AP
If police officers are sent to museums to train observational skills, shouldn't literary texts be used to teach empathy?