Thursday, June 4, 2026

NASA's Juno spacecraft captured particles traveling close to the speed of light near Jupiter's bow shock, providing new evidence for how cosmic rays form and suggesting the same acceleration process occurs across the universe.^[1]

NASA officially declared its MAVEN Mars orbiter dead after six months of radio silence, ending more than a decade of atmospheric observations that advanced understanding of how Mars lost its atmosphere.^[2]

Researchers at the University of Pittsburgh discovered a way to reverse the direction of energy flow in turbulence, challenging a foundational theory that has stood for more than 80 years and potentially opening new possibilities for controlling ocean currents and improving climate forecasting.^[3]

A study of more than 600,000 U.S. veterans found that GLP-1 drugs like semaglutide were associated with lower rates of substance use disorders and fewer overdoses, hospitalizations, and drug-related deaths among those already struggling with addiction.^[4]

Astronomers using Australia's ASKAP radio telescope traced a mysterious class of repeating cosmic signals to a white dwarf star siphoning material from a red dwarf companion, providing the strongest evidence yet for the source of these baffling phenomena.^[5]

Karolinska Institute researchers developed an experimental diabetes and obesity pill that activates metabolism in skeletal muscle to burn fat rather than reducing hunger, potentially avoiding muscle loss associated with current weight-loss medications.^[6]

The United Nations weather agency warned of an 80 percent chance of an El Niño event between June and August, with roughly 90 percent certainty by November, raising the risk of extreme weather including floods, droughts, and heatwaves.^[7]

U.S. President Trump announced that Israel and Hezbollah have agreed to halt hostilities, with Israeli Prime Minister Netanyahu pledging to stop a threatened invasion that would have taken troops to Beirut's southern suburbs.^[8]

Iran's World Cup squad will depart for their base camp in Mexico on June 6 despite ongoing ambiguity over U.S. visas, with Secretary of State Marco Rubio stating the country will not allow individuals with ties to the IRGC to join the delegation.^[9]

NASA engineers completed their final inspection of the Nancy Grace Roman Space Telescope's primary mirror and are now preparing to ship the next-generation observatory to its Florida launch site ahead of a planned launch between fall 2026 and May 2027.^[10]