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Under a portrait of Theodor Herzl, David Ben-Gurion on May 14, 1948, declares the establishment of a Jewish state to be known as the state of Israel. Universal History Archive/Universal Images Group via Getty Images

On its 75th birthday, Israel still can’t agree on what it means to be a Jewish state and a democracy

Israel may no longer be a fledgling state – but it has yet to overcome the basic contradiction that has defined it from the very beginning.
Mississippi River flooding left parts of Davenport, Iowa, under water in May 2023. KC McGinnis/For The Washington Post via Getty Images

America’s aging flood control infrastructure is failing – federal funding is coming, but too often new construction relies on old data

Flood risks are rising, yet communities may spend millions of dollars in federal infrastructure funding on systems that aren’t built to handle them.
New research shows that the destructive merging of a star and a planet expels huge amounts of gas, as shown in this artist’s impression. K. Miller/R. Hurt (Caltech/IPAC)

Astronomers just saw a star eat a planet – an astrophysicist on the team explains the first-of-its-kind discovery

Stars begin to expand when they run out of fuel and can become thousands of times larger, consuming any planets in the way. For the first time, astronomers have witnessed one such event.
Quaternary ammonium compounds can linger on surfaces and in indoor air and dust long after the disinfectant has dried. Guido Mieth/DigitalVision via Getty Images

Disinfectants and cleaning products harboring toxic chemicals are widely used despite lack of screening for potential health hazards

Quaternary ammonium compounds, also known as QACs or quats, are commonly used antimicrobials also found in many household products. Soap and water may be a safer bet when cleaning surfaces.
Changes in the synapses between neurons is responsible for learning and memory. KTSDESIGN/Science Photo Library via Getty Images

Memories may be stored in the membranes of your neurons

Pinpointing where memories are stored in the brain and how they are transmitted could provide new targets to treat neurological diseases and serve as models for neuromorphic computing.
Russian President Vladimir Putin is shown in Moscow in March 2022, shortly after Russia invaded Ukraine. Mikhaul Klimentyev/Sputnik/AFP via Getty Images

Putin may not outrun the warrant for his arrest – history shows that several leaders on the run eventually face charges in court

The International Criminal Court announced an arrest warrant for Putin and his children’s rights commissioner in March 2023, alleging the illegal abduction and deportation of Ukrainian children.
E. Jean Carroll arrives for the first day of her civil trial against former President Donald Trump on April 25, 2023. Michael M. Santiago/Getty Images

Trump found liable for assaulting, defaming E. Jean Carroll – after a trial where he relied on a discredited myth about how women should react to rape

Trump’s lawyers questioned E. Jean Carroll, a magazine columnist, about why she did not scream or call the police after, she alleged, Trump sexually assaulted her in the 1990s.
David Dunning and Justin Kruger tested psychology students to see whether the least skilled were also the most unaware. Rich Vintage/E+ via Getty Images

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

The idea that the least skilled are the most unaware of their incompetency is pervasive in science and pop culture. But a new analysis of the data shows that the Dunning-Kruger effect may not be true.
Gain-of-function experiments in the lab can help researchers get ahead of viruses naturally gaining the ability to infect people in the wild. KTSDesign/Science Photo Library via Getty Images

Gain-of-function research is more than just tweaking risky viruses – it’s a routine and essential tool in all biology research

From cancer immunotherapy and antibiotics to GMO crops and pandemic surveillance, gain of function is a cornerstone of basic research.
Speaker Kevin McCarthy got the House to approve a package that could reduce the Medicaid program’s scale. Alex Wong/Getty Images

Medicaid work requirements would leave more low-income people without health insurance – but this policy is unlikely to pass this time around

Adults insured by Medicaid who are 19 to 55 years old and don’t have children or other dependents would need to spend 80 hours a month doing paid work, job training or community service.