The Nasdaq Composite was down 0.47% at 27,468.99 by 12:50 p.m. EDT. It had gained 0.12% from the cash open. The 10-year yield eased to 5.316% from 5.364% at its high. The recovery remained narrow. The ...

The S&P 500 closed at a record 7,818.93 on Tuesday, up 0.58%. Yet it finished 25.59 points below its intraday peak. The ...

The S&P 500 rose 0.72% to 7,830.08 by 12:51 p.m. EDT. It remained on record-close pace. Utilities gained 2.51%, while the Russell 2000 fell 0.20%. The split matters for investors testing the ...

U.S. stocks opened unevenly on Monday as a 5.30% 10-year Treasury yield restrained an otherwise broad advance. The Nasdaq Composite gained 0.5% by 10:05 a.m. EDT. The S&P 500 added 0.2% soon after the ...

NASA has put a two-mode propulsion experiment into low Earth orbit. The ASCENT Propulsion Dual Mode spacecraft launched October 1 on SpaceX’s Transporter-18 mission, according to NASA’s launch update.

OpenAI disclosed on September 30 that a coordinated campaign tried to extract hidden reasoning from its models. Activity began July 1, then peaked on July 24 and 25. Those two days brought 16,000 ...

Japan’s NEDO has selected a three-year demonstration that connects quantum optimization to laboratory testing of proposed cancer-immunotherapy targets. The project will use AIST’s ABCI-Q ...

A 335-kilogram spacecraft built to inspect inactive satellites reached low Earth orbit on October 1. NASA confirmed that Otter 24C launched at 11:32 a.m. PDT on SpaceX’s Transporter-18 rideshare. The ...