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COVID-19 vaccines have been proved safe and effective. But it’s understandable to have questions. Halfpoint/iStock via Getty Images Plus

An infectious disease doctor explains the science behind COVID-19 vaccines at a level that children – and adults – of all ages can understand.

Most Wiccans in the U.S. practice alone, though they congregate in large gatherings to conduct rituals and learn from one another. Sarah Swinford/EyeEm via Getty Images

Interest in Wicca and witchcraft appears to be increasing, but what exactly is Wicca in the first place?

People produce mountains of data every day, but not all data is treated the same under the law. Orbon Alija/E+ via Getty Images

Profit-friendly data privacy laws in the U.S. are out of step with public sentiment and hinder uses the public supports, from reducing opioid overdose deaths to curbing the COVID-19 pandemic.

Vaccines against COVID-19 are the safest – and fastest – way to prevent the spread of variants. Luis Alvarez/ DigitalVision via Getty Images

A 2015 paper on chicken virus evolution is being taken out of context and used to fuel fears about COVID-19 vaccines. Its lead author aims to clarify the science in hopes of saving lives.

A little more than 8% of vaccinated people in the U.S. have received the Johnson & Johnson vaccine. SOPA Images/Contributor/Light Rocket via Getty Images

It has been six months since the Johnson & Johnson vaccine received emergency use authorization. What does six months of data show about its efficacy, side effects and protection from variants?

ISIS-K, an affiliate of the Islamic State group, has claimed responsibility for the Kabul terrorist attack. Wakil Kohsar/AFP/Getty Images

An attack on the Kabul airport has left scores dead and many more injured. Two terrorism scholars explain who the group thought responsible is, and how big of a threat is it.

A Delta Health Center worker at a pop-up COVID-19 vaccination clinic in rural Mississippi in April 2021. Spencer Platt/Getty Images

Achieving widespread immunity to COVID-19 through vaccination requires as many people as possible to get their shots, including those who object or haven’t bothered.

The University of Alabama’s Alpha Phi sorority runs out of Bryant-Denny Stadium during bid day in 2014. AP Photo/Brynn Anderson

There’s plenty to critique about sorority culture. But going after Southern accents is punching down.

Police patrol outside the Embassy of Taiwan in Port-au-Prince on July 9, 2021, after 11 suspected assassins of Haitian President Jovenel Moïse broke into its embassy in an attempt to flee. Valerie Baeriswyl/AFP via Getty Images

Local power struggles and strong US interests have long shaped political leadership – and presidential assassinations – in Haiti, limiting nation-building projects on the Caribbean island.

Does Fed Chair Jerome Powell have the tools to tackle racial disparities? AP Photo/Patrick Semansky

Central bankers are expected to discuss the racial income and wealth gaps during the virtual Jackson Hole retreat. But an economist argues that the Fed is not suited for addressing these issues.

Emerald ash borer larva cut these feeding galleries on the trunk of a dead ash tree in Michigan. corfoto via Getty Images

Biological control strategies curb pests using other species that attack the invader. A biologist explains why it can take more than a decade to develop an effective biological control program.

Be on the lookout for poison ivy’s three leaves on a reddish stem. raksybH/iStock via Getty Images Plus

Two dermatologists explain the itchy and unpleasant allergic reaction this plant can cause in up to 90% of people who encounter it.

When our bodies are moving, our minds are more open to learning. Petri Oeschger/Moment Collection via Getty Images

Whether they’re in a classroom or online, students should be encouraged to move around. An expert on learning with technology explains why.

The Taliban came to the fore during Afghanistan’s civil war that followed the Soviet pullout of 1989. Robert Nickelsberg/Getty Images

A historian explains how the Taliban emerged out of the decades of chaos that followed the Saur Revolution in Afghanistan in 1978.

Storm surge can push water levels well above normal sea level during a hurricane. Sean Rayford/Getty Images

How destructive storm surge gets depends on both the hurricane and the shape of the land.

Many of the organizations helping refugees resettle are faith-based groups. AP Photo/Airman 1st Class Kylie Barrow

Faith-based organizations have been central partners in resettling refugees in the United States. But there are signs that support may be waning.

Energy storage can make facilities like this solar farm in Oxford, Maine, more profitable by letting them store power for cloudy days. AP Photo/Robert F. Bukaty

The US is generating more electricity than ever from wind and solar power – but often it’s not needed at the time it’s produced. Advanced energy storage technologies make that power available 24/7.

Parents may want to talk to teachers about their family structure, and what their child calls each parent, before the start of the school year. Attila Csaszar/Moment Collection via Getty Images

Parents often think about a school’s quality, class sizes, safety and extracurriculars. LGBTQ parents may also want to know their family will be respected.

A man walks past a makeshift memorial for medical workers who died from COVID-19 in Saint Petersburg on May 11, 2020. Olga Maltseva/AFP via Getty Images

Another wave of COVID-19 in Russia is undermining public health and threatens economic recovery. But widespread mistrust of institutions will stymie the country’s efforts to move past the pandemic.