Tuesday, August 4, 2026

Japan and the United States confirmed their first joint currency intervention since 2011, purchasing yen to halt its slide to 40-year lows against the dollar, with both governments signaling willingness to act further if needed.^[1]

Researchers at Rockefeller University found that arginine, a common amino acid supplement, may help the immune system fight cancer and viruses by boosting production of a cellular warning protein, with mice on arginine-rich diets showing fewer tumors and milder infections.^[2]

Physicists at SISSA published findings suggesting dark matter particles may exert a hidden force on one another that causes clustering while simultaneously making dark matter effectively lighter as the universe expands, challenging previous theoretical expectations.^[3]

A clinical trial at the University of Hong Kong found that completing 75 minutes of brisk interval walking in a single weekly session reduced body fat and improved cardiovascular fitness about as effectively as spreading the same exercise across three days.^[4]

Scientists discovered Musango matusadonaensis, a new dinosaur species from Zimbabwe's Lake Kariba region, offering fresh evidence that dinosaurs 210 million years ago spread across distinct ecosystems in southern Africa.^[5]

A study published by researchers using single-cell DNA methylation analysis found that cells of identical chronological age can differ markedly in biological age, creating mosaics of slowly and rapidly aging cells within tissues.^[6]

Brazilian President Luiz Inácio Lula da Silva, 80, formally launched his campaign for a fourth term at the Workers' Party national convention in São Paulo, framing the October election as a defense of national sovereignty amid trade tensions with the United States.^[7]

The European Union called an emergency meeting after an estimated 60,000 migrants entered Spain's North African territory of Ceuta over several days, with at least 72 people dying during the mass migration.^[8]

NASA announced 18 new Phase I awards totaling $3.2 million for its Innovative Advanced Concepts program, supporting early-stage research for technologies ranging from solar dimming via controllable dust clouds to lunar underground exploration systems.^[9]

A SpaceX Falcon 9 rocket second stage is expected to impact the Moon in August 2026, with NASA's Lunar Reconnaissance Orbiter planning to observe the crash site before and after impact to study the resulting crater.^[10]