Appel fluorination of alcohols with potassium fluoride (KF). Credit: Anirban Mondal.
Alcohols are among the most abundant building blocks in chemistry. Fluorinated compounds, meanwhile, are essential for many modern medicines, crop protection products and advanced materials. Converting one into the other, however, has traditionally relied on toxic, thermally unstable reagents such as DAST (diethylaminosulfur trifluoride) that make large-scale manufacturing operationally demanding.
SpaceX said on Thursday that it will remove the unpermitted turbines powering its xAI data centers near Memphis as it transitions to a permanent, 1.2 gigawatt natural gas power plant.
The turbines won’t be completely removed until July 2027, though. SpaceX said that it’s currently operating 69 gas turbines to power the Colossus data centers, of which many have been operating for months. The NAACP and Southern Environmental Law Center have sued xAI over the use of unpermitted turbines.
I'm likely not the first to tell you that the memory crisis has really done a number on PC gaming, but nothing quite exemplifies this like AMD releasing a graphics card with 4-8 GB of VRAM in 2026. That card is called the RX 9050; it starts at $279, and it is limited to certain regions. One early review suggests performance isn't great, but its specs are looking a little funky.
After a rare mid-summer weekend at the box office without a new wide release, moviegoers are gobbling up the chance to see Tom Holland and Zendaya return to the big screen for Sony Pictures‘ Spider-Man: Brand New Day.
On Sept. 14, 1977, during the 8-9:30 p.m. time slot, Spider-Man swung to screens across America in CBS’ special presentation before launching a 14-episode run on the network. The TV movie bowed to a 17.9 rating and 30 share but ABC’s Charlie’s Angels led the way on that Wednesday with a 32.6 rating and 50 share. Notably, weeks after the Nicholas Hammond-starring web-slinger show debuted, Columbia Pictures snapped up distribution rights to air the title as a feature film overseas. The Hollywood Reporter’s original review is below.
When astronauts travel deeper into space, every drop of fuel becomes critical, and keeping those fuels stable for months or even years is one of the biggest engineering challenges facing future missions. Now, University of Florida researchers have uncovered a surprising behavior in boiling liquids that could help solve that challenge.
Change is scary, but inevitable in this world. Fortunately, some things remain sacred, particularly among long-standing car brands. Whether linked to nostalgia or heritage, the automotive world is full of little traits that the average joe may not pick up on, but us car nerds know them when we see them. On that note, earlier this week I asked you what signature design element you would hate to see go away, and you all had some great answers. This is only a handful of my personal favorite answers, but there are plenty of other great ones that didn't make this roundup that I implore you to go back and read. Or if you missed your shot, leave your answer in the comments below.
New approach to topological photonics enabled a 'four-lane highway' for unidirectional microwave signals. Credit: Xiaohan Cui et al.
Topological photonics can force propagating light to travel in a single direction—allowing researchers to route optical signals around corners and past defects without any of it scattering backward. So far, however, this one-way flow has only been found at the boundary between two specially engineered "topological insulator" regions, leaving most of the material unavailable for light transport.