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Lula’s diplomatic dance is nothing new for Brazil or its leader – what has changed is the world around him

Rafael R. Ioris, University of Denver

Lula’s courting of – or by – China and Western powers has confounded critics. But in reality, it is a continuation of the foreign policy he pursued during his earlier term in power.

Americans are increasingly moving to red, Republican-leaning states – where life is cheaper, but people also die younger

Robert Samuels, University of California, Santa Barbara

Idaho, Montana and Florida had the highest population growth among US states between 2020 and 2022.

NFL icon and social activist Jim Brown leaves a complicated legacy

Kenneth L. Shropshire, University of Pennsylvania

The death of NFL great and Hollywood star Jim Brown renews questions about the role of modern-day athletes in political and social issues.

Africa is getting renewed attention from Washington — and some African states are courting African Americans

Asafa Jalata, University of Tennessee

As the United States government builds economic and security ties with African countries, some of those countries are encouraging African Americans to establish social and economic ties in Africa.

China’s hypersonic missiles threaten US power in the Pacific – an aerospace engineer explains how the weapons work and the unique threats they pose

Iain Boyd, University of Colorado Boulder

China’s newest hypersonic missile, the DF-27, could sideline US aircraft carrier groups in the Pacific, while missiles in the works in China, Russia and the US threaten global security.

Empowerment, individual strength and the many facets of love: Why I fell for Tina Turner

Leigh Carriage, Southern Cross University

The legendary singer has died at 83. Her performance practice exemplified fierce hard work.

What is vernacular art? A visual artist explains

Beauvais Lyons, University of Tennessee

The genre – also known as ‘folk art’ or ‘outsider art’ – serves as a reminder that art is a universal human pursuit.

What is ‘ethical AI’ and how can companies achieve it?

Dennis Hirsch, The Ohio State University; Piers Turner, The Ohio State University

Companies that want to avoid the harms of AI, such as bias or privacy violations, lack clear-cut guidelines on how to act responsibly. That makes internal management and decision-making critical.

Debunking the Dunning-Kruger effect – the least skilled people know how much they don’t know, but everyone thinks they are better than average

Turkey’s Erdoğan took a page from US presidents and boosted reelection campaign by claiming to have killed a terrorist

Gravitational wave detector LIGO is back online after 3 years of upgrades – how the world’s most sensitive yardstick reveals secrets of the universe