What’s happening with the trees that stay green?
Many deciduous trees put on a dazzling fall foliage display. But coniferous evergreens hold on to their needles and stay green. A biologist breaks down these different survival strategies.
Chesley Bonestell’s detailed drawings of space travel inspired millions.
While the 50th anniversary of the first Moon landing is an opportunity to celebrate a remarkable technological achievement, it's worth reflecting upon the creative vision that made it possible.
How partisans argue tells a lot about how the public sees democracy.
US history is filled with instances where one partisan side charges that the other side's positions will lead to national ruin. Now, both sides accuse the other of betraying their country.
From cats to dragonflies, Leonardo sketched scores of animals.
Leonardo da Vinci/Royal Collection Trust
Rather than prioritizing human beings at the pinnacle of the animal kingdom, Leonardo revered all living beings. When he compared people and animals, it's the animals that often came out on top.
In some societies, kids are taught that they’re in control of their own happiness – which makes them more indulgent.
Children in countries like South Korea and Russia are more obedient, while American kids tend to be more self-indulgent.
Screen shot of Beto O'Rourke’s Facebook ad, 2018.
Health care dominated 2018's political ads. Digital advertising grew, but hasn't yet killed TV's share. And dark money favored Democrats, say scholars studying the volume and content of campaign ads.
Americans have long differed over whether patriotism should be pushed in their nation’s schools.
As debates over protests during the national anthem continue to rage, two scholars examine how legal and moral battles over the merits of patriotism in public schools have been playing out for years.
The KKK assembled in Portland, Maine, in 1923.
Library of Congress
One year after Charlottesville's white supremacist march, US racism is seen primarily as a Southern-grown problem. But Jim Crow laws started in the North, which has a long history of systemic racism.
A crowd gathers around speakers during a rally for free speech near the University of California, Berkeley campus.
Marcio Jose Sanchez/AP
On the one-year anniversary of the tragedy in Charlottesville, we asked the presidents of Bowdoin, Elon and the University of Washington whether free speech should be treated differently on campus.
Pa-ta-ta… o no. Una mujer trabaja en un stand en un festival de queso en Moscú, Rusia.
AP Photo / Pavel Golovkin
Los rusos consideran que sonreír es un signo de estupidez. Las investigaciones de psicología social pueden explicar estas diferencias culturales.
Say cheese … or not. A woman works a stand at a cheese festival in Moscow, Russia.
AP Photo/Pavel Golovkin
In the US, smiling is a reflexive gesture of goodwill, but Russians view it as a sign of stupidity. Social psychology research could help explain this cultural contrast.
Citizens protesting at the Volokolamsk town hall, after noxious fumes from a local landfill sent 50 children to the hospital.
Radio Free Europe
Massive noxious garbage dumps piling up around Moscow have sparked citizen protests. And those protests are turning into criticism of the political system, which could threaten the Putin regime.
Oprah’s ‘Time’s up!’ speech at the Golden Globes got people talking about her candidacy in 2020.
Getting to the White House would mean overcoming issues of race and gender.
Closed on November 24.
On Black Friday, November 24, outdoor retailer REI will close its stores and urge customers to #OptOutside. But a historian calls this popular campaign light green environmentalism at best.
People protest at a demonstration in Market Square, in Cleveland. The demonstration was organized in protest of President Donald Trump’s immigration order.
AP Photo/Tony Dejak
A lot of moral outrage has been expressed lately – over Trump's travel ban and other issues. The expression of such outrage is more than a response to perceived injustice.
World War II poster.
U.S. National Archives and Records Administration
Trump's travel ban is an echo of policies passed in the United States during World War II.
REI's 'Opt Outside' campaign makes a virtue of shunning Black Friday and hiking instead of shopping. But while outdoor retailers preach sustainability, they still fuel our consuming habits.
No nukes: a 1979 rally against the construction of the Diablo Canyon nuclear plant, which is slated to shut down by 2025.
Jessica Collett/Shaping San Francisco Digital Archive
The anti-nuclear movement in the U.S. is at a critical juncture as worries over climate change grow.
The “engineer” of civil rights legal victories
The civil rights movement produced many different types of leaders. Thurgood Marshall, argued successfully before the Supreme Court that racial segregation laws violated the US Constitution. Diane Nash…