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The Earth is round. Alistair Berg/DigitalVision via Getty Images

Why are planets round?

James Webb, Florida International University

Gravity, mass and centrifugal force all contribute to the final shape of a planet.

In a 14th-century illustration, Dante reaches out to Sapia, whose eyes have been sewn shut. Bodleian Libraries, University of Oxford

One citation at a time, a professor and her students are crafting a more complete picture of Dante’s women.

Outages left downtown New Orleans in the dark after Hurricane Ida made landfall on Aug. 29, 2021. Michael Robinson Chavez/The Washington Post via Getty Images

Hurricane Ida left the entire city of New Orleans in the dark and renewed discussion of burying power lines. But there’s no way to completely protect the grid, above ground or below.

People protest in Texas after the governor signed a bill to outlaw abortion after about six weeks of pregnancy. Sergio Flores/Getty Images News via Getty Images

‘Heartbeat’ abortion laws like the one enacted in Texas are often based on particular Christian views, but there are many religious perspectives on abortion. What do Jewish texts say?

The door to unemployment benefits is closing for million of Americans. AP Photo/John Minchillo

Three pandemic-related unemployment benefit programs expire on Labor Day, putting millions of mostly low-income families in financial jeopardy.

Intensive care physicians are yet again facing ICU bed and staff shortages as severe COVID-19 cases rise. gorodenkoff/iStock via Getty Images Plus

A critical care doctor brings a frontlines perspective to the frustration of dealing firsthand with vaccine hesitancy and discusses the limitations of science and medicine.

Philadelphia’s Manayunk neighborhood was flooded by the remnants of Hurricane Ida. AP Images/Matt Rourke

Evidence is mounting that, as the climate warms, the amount of rain falling in heavy storms is increasing, especially in the central and eastern U.S.

Dance and movement therapy not only holds promise for treatment of trauma, anxiety and depression but can also contribute lifelong coping skills. kate_sept2004/E+ via Getty Images

The COVID-19 pandemic and a growing global refugee crisis have shone a light on the ever-increasing need for new approaches to mental health treatment.

On Sept. 17, 2001, Transportation Secretary Norman Mineta, left, met with President George W. Bush and others. Greg Mathieson/Mai/Getty Images

In the wake of 9/11, some called for rounding up whole groups of people viewed as potential threats to the nation. But Transportation Secretary Norman Mineta knew the U.S. had done that before.

Temperatures in normally warm Texas plunged into the teens in February 2021, knocking out power for a population unaccustomed to cold, with deadly consequences. Thomas Shea / AFP via Getty Images

Counter to what you might expect, events like the February cold wave that froze Texas can actually become more likely with global warming.

Underground and underwater. David Dee Delgado/Getty Images via Getty Images

Images of water gushing into subway stations filled social media following heavy rain in New York City. Solutions are at hand – but it takes money and political will, an expert explains.

Studies show video games help students learn math and science. Klaus Vedfelt/DigitalVision via Getty Images

While China has taken steps to rein in the playing of video games among students during the school week, a U.S. scholar makes the case for why the games should be featured more prominently in school.

In 2014, the Islamic State group could draw crowds of supporters, like these in Mosul, Iraq. But actual fighting recruits have been harder to come by. AP Photo

A second plot was planned on 9/11, but there were too few terrorists to carry it off. Twenty years later, al-Qaida and its offshoot the Islamic State group still have trouble attracting recruits.

People evacuated from Afghanistan arriving in the U.S. flew to Dulles International Airport in northern Virginia. AP Photo/Gemunu Amarasinghe

Needs will continue in Haiti and New Orleans – and for Afghan refugees – long past the point when most donors will have found new priorities.

It’s all legal tender. Steven Puetzer/The Image Bank via Getty Images

The country became the first to make bitcoin a formal part of its payments system, but whether it’ll catch on is another story.

Mosul, a major city in northern Iraq, in the 19th century The Print Collector via Getty Images

Day 4 of our Understanding Islam series. Knowing the historical contributions of Islam and its influence on other faiths can help counter many assumptions about the religion today.