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The informal sector has become a dominant source of livelihoods for urban residents in African cities. Within this sector, street trading is one of the most visible and vital components of urban economies.

The Southern African Large Telescope (SALT) celebrates 20 years of observing the sky. SALT is the largest optical telescope in the southern hemisphere. It’s been steadily revealing new science knowledge, ranging from the discovery of planets outside our solar system to understanding the unusual physics around black holes. It’s also…

For legal reasons, David Adjmi and Will Butler’s play is absolutely not about the recording of Fleetwood Mac’s 1977 album Rumours. But like that famous album, it is a dizzying amalgamation of influences, mercurial talents and creativity that sits among the defining achievements of its generation. And like Fleetwood Mac,…

Colostrum is often called “liquid gold” by lactation specialists, midwives and infant-health researchers. It’s the early milk produced in the first days after childbirth: thick, yellow and rich in antibodies, proteins and nutrients.

Countries around the world are facing worsening heatwaves, hurricanes, droughts and floods. If current trends continue, governments need to prepare for a much hotter world with a predicted increase in global temperatures of at least 2°C, possibly up to 3°C.

Israel’s top military prosecutor, Yifat Tomer-Yerushalmi, was arrested recently in a case which further reveals the extent of mistreatment of Palestinian detainees and the impunity enjoyed by Israeli security forces. The arrest of Tomer-Yerushalmi, who was, until her resignation last week, Israel’s military advocate general, is the latest development in…

The term “neurodiversity” is still relatively new. Even now, there’s no firm agreement among experts about what it should include. Does it refer only to neurodevelopmental differences such as autism, ADHD and dyslexia? Or should it stretch further, to include mental health conditions too?

People trying to understand politics in the United States today often turn to history for precedents and perspective. Are our current divisions like the ones that preceded the American Revolution or the Civil War? Did the dramatic events of the 1960s generate the same kind of social and political forces…

As the first American pope, Leo XIV has largely avoided speaking out about domestic politics in the United States.

Imagine walking out of a Walmart, Target or Costco. As you push your large shopping cart to your car, you ask yourself: Did I really need all that stuff?

People often take walking for granted. We just move, one step after another, without ever thinking about what it takes to make that happen. Yet every single step is an extraordinary act of coordination, driven by precise timing between spinal cord, brain, nerves, muscles and joints.