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Chemical & Engineering News (C&EN) Homepage Features Physical Chemistry Can we predict which chemistry research projects will pay off? New bibliometric tool combs through scientific literature, patents, and grants to forecast future impact, but experts disagree about its usefulness February 19, 2026
News Analytical Chemistry How did chemists identify the poison that killed Alexei Navalny? Epibatidine is used in research but is not part of typical toxicology panels February 19, 2026
News Atmospheric Chemistry How powerful lasers can measure air pollution from space debris Scientists directly measured the lithium left behind in the mesosphere when pieces of a SpaceX rocket fell to Earth over Europe February 19, 2026
News Chemical Regulation EPA moves to rescind much of a 2024 chemical safety rule Proposed changes made public last week would overhaul the agency’s risk management program February 20, 2026
Two people wearing protective fire gear stand outdoors. Meetings ACS News ACS Nigeria 11th Annual Symposium focuses on emerging technologies and chemistry for sustainable development This year saw higher attendance than last year February 20, 2026
Meetings ACS News Chemists share a love of science at 2026 ACS Singapore Chapter Youth Challenge The one-day event, celebrating achievements of young chemists, took place on Valentine’s Day February 20, 2026
The façade of a building, with trees in the forefront, and a logo and words in all caps for Nanyang Technological University Singapore. Policy Briefs Policy Feb. 20 Policy Watch: Trump orders more glyphosate and phosphorus production In other developments, lawsuits challenging the EPA endangerment rule begin and a draft GOP farm bill resurrects a pesticide liability shield February 20, 2026
A man in a suit stands at a lectern with a microphone and the seal of the US Department of Agriculture in front. News Atmospheric Chemistry Satellite data give new estimate of atmospheric methane breakdown Observational data suggest models are likely underestimating the amount of methane lost through atmospheric chemistry February 20, 2026
A data visualization showing a map of the Earth with the northern half obscured by purple shading. The southern continents including the tip of Africa, Australia, South America, and Antarctica appear as white lines on a black background. Features Nuclear Chemistry Hanford Site finally turns nuclear waste into glass Millions of liters of radioactive waste from plutonium production at the historic site await vitrification February 20, 2026
Hands wearing thick safety gloves hold metal tongs holding a container with a molten substance pouring out onto a tray on a counter. ADVERTISEMENT ADVERTISEMENT ACS News Science Communication Notes on the ‘ACS sesquicentennial’ crossword puzzle Additional background for solvers of C&EN’s celebratory crossword February 20, 2026
The 3 cent stamp commemorating the ACS’s diamond jubilee and showing a three-neck round-bottom distillation flask, and a trio of industrial chemical towers. Crosswords Science Communication Crossword: ACS sesquicentennial A crossword to celebrate ACS on its anniversary February 20, 2026
Related image. News Natural Products Bacterial enzymes help reveal natural product stereochemistry The peptidases can break bonds between specific D- and L-amino acids, filling a gap in the toolbox for natural products characterization February 19, 2026
Fruiting bodies of the amoeba iDictyostelium discoideum/i featuring spinly transparent stalks and cloudy white heads that are the shape of lemons. News Economy Europe promises protection for chemical makers Heads of state say they will step in to ensure sector’s survival February 19, 2026
A large chemical plant with multiple buildings and metallic towers stands against a blue sky with trees in the foreground. News Synthetic Biology Stick chemistry: High-throughput method for finding new molecular glues Click chemistry method opens up avenues for intentional glue discovery February 19, 2026
A visualization of a new molecular-glue degrader bound to cereblon and a protein target of interest. Awards ACS News Annette Lykknes named 2026 winner of Joseph B. Lambert HIST Award The award recognizes outstanding achievement in the history of chemistry February 19, 2026
Annette wears a brown high-neck top with a necklace and black-framed glasses and smiles at the camera.

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Illustration of lithium-ion batteries. Energy Storage The electric innovations that brought lithium-ion batteries online December 17, 2025
Antibiotics Podcast: The ancient, ‘juicy’ origins of antibiotic resistance December 3, 2025
A photo collage with three items: A hand holding up a petri dish with bacteria growing in it, next to some pea plants, and in the background is a computer generated image of a DNA sequence. Gene Editing Inflection Point: The era-spanning epiphanies that enabled gene editing November 19, 2025
A collage shows a red Gila monster surrounded by Wegovy, Ozempic, and Saxenda injectable drugs against a yellow background. Pharmaceuticals Inflection Point: How underappreciated critters inspired GLP-1 drugs November 5, 2025
More Episodes Meetings ACS News ACS Spring 2026 Atlanta meeting guide—Celebrating 150 years The meeting will take place March 22–26 February 18, 2026
An aerial view of the Atlanta skyline. News Vaccines ‘Regulatory whiplash’ as FDA decides to review Moderna flu shot The agency about-faced on a decision not to consider the new vaccine February 18, 2026
Marty Makary speaks as other government officials stand nearby. Features Vaccines MAHA’s next target: Metals in vaccine ingredients Officials are going after metal-containing ingredients, including aluminum adjuvants. Here’s why vaccines need them February 18, 2026
A young boy gets a vaccine in his left arm in an immunization clinic. Chempics Materials Chemistry in Pictures: Fluorescent flare February 18, 2026
A GIF of a orange-red crystal, held in a pair of tweezers, emitting a spreading green glow. Features Drug Development Paclitaxel saved my life. New discoveries could boost supply After decades, scientists have finally pieced together the 23-step biosynthetic pathway to produce this cancer drug February 18, 2026
A photo of a woman standing next to an English yew in Kew Botanic Gardens in London, England. News ACS News Memory Lane: The chemistry teacher who built confidence in a future scientific leader Our contributor recalls going from never having met a practicing chemist in his life to becoming a leader in science, and the biggest leadership lessons he’s taken with him February 18, 2026
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