Scientists detect a surprising shift in human blood as atmospheric CO2 rises - Science Daily

Researchers at the University of Basel have investigated how fine particles in exhaust emissions from aircraft and marine engines change in the atmosphere. Their findings show that aircraft emissions in particular become more toxic over time. Fine particulate matter consists of tiny particles with diameters in the nanometer range. They are produced, for example, by fuel combustion, remain suspended in the air and can penetrate deep into the respiratory tract. There, they can trigger what is known as oxidative stress – a process that promotes inflammation and, in the long term, can lead to serious health problems such as respiratory or cardiovascular diseases. Scientists refer to this harmful property of the particles as their oxidative potential.

Scientists have uncovered thousands of previously overlooked chemical reactions that could help improve the conversion of carbon dioxide (CO2) into valuable fuels and industrial chemicals. By combining machine learning with advanced computer simulations, researchers at the Indian Institute of Science (IISc) identified 9,389 individual reactions occurring on a copper catalyst, revealing unexpected chemical pathways that conventional models had missed. The findings, published in Nature Communications, could help scientists develop more effective catalysts for transforming CO2 into useful products such as methanol. The research also uncovered a surprising way hydrogen can participate in these reactions, challenging established assumptions about how the process works.

Milky Way’s first microblazar candidate sits 12,000 light-years away, offering a rare ground-level lab for studying relativistic jetsA black hole 12,000 light-years away is firing a jet of plasma almost directly toward Earth. At that distance, no known or expected danger to Earth has been identified by the researchers or the institutions involved. What astronomers have actually found is rarer and more interesting than a threat. Researchers have identified IRAS 18293-0941 as a compelling candidate for the Milky Way’s first microblazar, a class of object that gives astrophysicists a close-up laboratory for studying some of the most violent physics in the galaxy. What Astronomers FoundThe discovery centers on a binary system whose black hole expels plasma jets at close to three-quarters the speed of light, pointed almost directly toward Earth. The system pairs a hot, massive star with a black hole that completes a full orbit roughly every 11.38 days. Material drawn from the companion star feeds the black hole, and some of that matter gets expelled outward as opposing jets traveling at approximately three-quarters the speed of light. Terminology matters here.