September 2026
All columns and Brief analyses.
10 results
US 10-year Treasury yield tops 5 percent, a level last seen in 2023
SRN News, citing Reuters, says the US 10-year Treasury yield was last up 3.51 basis points at 5.01 percent on Monday, the highest since October 2023. CNN Business says the same yield rose to 5 percent, a level briefly touched in 2023 and otherwise not seen since 2007. Both reports say the move can raise costs for mortgages and other loans.
Webb sees Chariklo's inner ring thicken by 50 percent while its outer ring fades by 60 percent
A James Webb Space Telescope stellar occultation in October 2022 shows the two narrow rings of Chariklo, a Centaur about 250 kilometres across, changing in opposite directions: the inner ring blocks about 50 percent more starlight than in earlier occultations, while the outer ring's signal is about 60 percent weaker than in 2017. The rings kept their positions. The team published the comparison in Science Advances on 9 September and does not yet know whether material moved or the wavelength made the difference.
X and SpaceXAI moved to drop Apple from their antitrust suit, with prejudice
Al Jazeera reports X Corp and SpaceXAI withdrew antitrust claims against Apple that accused the company of favouring ChatGPT in iOS. 9to5Mac says the motion seeks dismissal with prejudice, Apple does not oppose it, and Judge Mark Pittman still must approve. Claims against OpenAI continue. The filing gave no settlement terms.
Zipalertinib plus chemotherapy stretched median progression-free survival to 14.5 months
IASLC reports that adding zipalertinib to first-line platinum-pemetrexed raised median progression-free survival in EGFR exon 20 insertion lung cancer from 8.5 months to 14.5 months. PR Newswire's 14 September Seoul dispatch repeats 14.5 versus 8.5 months (HR 0.50). Interim overall survival at 30 percent maturity is HR 0.72 and not yet clear.
A Hormuz cargo strike lands on Monday's table
A projectile off Qeshm prices the strait before any corridor text: fire, evacuation, and a US-blockade condition.
A wrong calculation still registers as a calculation inside the model
KAIST and Naver AI Lab could separate the type of a written reasoning step in hidden layers. A flawed calculation still looked like a calculation inside the model, so the type of the written step does not measure whether the answer is right.
BRICS at one table: old quarrels and cohesion from outside
Members who have fired missiles at each other sat around Modi's circular table. What holds such a table up is rarely written in its communiqué.
Copilot's HydraFusion claims the cheaper run, and Iris publishes the test that would check it
GitHub's HydraFusion reports a cheaper Copilot run against one baseline model, while the Iris release runs every benchmark twice, with the context layer on and off, and ships the harness that did it. The difference is what a team can re-check on its own endpoint.
Corn yields cut as season prices rise
The US corn crop forecast fell to 15.8 billion bushels as the harvested area slipped to 88.5 million acres.
Diamond holds its lattice to 1 TPa on a single shock
A peer-reviewed shock experiment at OMEGA keeps carbon as diamond until it melts near 7,300 K at 1 TPa. The BC8 phase that density-functional theory expects around that pressure does not appear on this path.