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Spiral galaxies like M100, pictured here, may hold answers about the nature of dark matter. NASA Spitzer Space Telescope/NASA/JPL-Caltech

We don’t know if dark matter exists. So why do astronomers keep looking?

A comparison of star-forming galaxies suggests, surprisingly, that dark matter and visible matter do interact – taking us closer to understanding what keeps the galaxies together.
Former President Donald Trump, at the Conservative Political Action Conference, Aug. 6, 2022, in Dallas. Brandon Bell/Getty Images

You don’t have to be a spy to violate the Espionage Act – and other crucial facts about the law Trump may have broken

Two national security law experts explain how the Espionage Act isn’t only about international intrigue, and share other important points about the law that was invoked in a search of Trump’s estate.
Kristalina Georgieva, the Managing Director of the International Monetary Fund, speaking in Senegal in 2019. Photo by Seyllou/AFP via Getty Images

When the IMF comes to town: why they visit and what to watch out for

The IMF sends its staff on two types of mission to member countries: to assess the state of the country’s macro economy or to assess the need for financial support.
President Ronald Reagan, shown here speaking in Moscow in 1980, was an early adopter of neoliberalism in the U.S. Dirck Halstead/Liaison

What is neoliberalism? A political scientist explains the use and evolution of the term

The word ‘neoliberal’ gets thrown around a lot, often with differing and even contradictory meanings. Here, a political economist explains the origins and evolution of this complex concept.
Texas is the No. 1 wind power producer in the U.S. Greg Smith/Corbis SABA via Getty Images

Who benefits from renewable energy subsidies? In Texas, it’s often fossil fuel companies that are fighting clean energy elsewhere

While Congress considers new renewable energy incentives, Texas’ sprawling wind farms tell a story about renewable energy ownership in the US – and who benefits from subsidies.

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