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Fifty years of measuring the world's cleanest air

Rethinking Europe's nature reserves

Mercury scout mission concept with solar sail propulsion

Researchers warn of risks posed by 'contaminants of emerging concern' found in crops, agricultural soil

Study suggests people are losing 338 spoken words every year and have been for at least 15 years

Researchers present first fossilized 'emperor' butterfly

Thirty previously unpublished verses by Empedocles discovered on a papyrus from Cairo

Reducing aircraft soot might not actually reduce the climate effects of contrails

World's largest quantum circuit simulation for quantum chemistry achieved on 1,024 GPUs

Lakes forming next to Greenland's melting ice sheet are speeding up glacier flow

Oregano, rosemary and 'time': Long-term swine study shows natural-compound benefits

Stretching metals can tune catalysis: A new method predicts energy shifts

Study finds some dark web users share traits with those involved in crime

Chaos shapes how meandering rivers change over time, research shows

Fins, fingers and toes: A new take on repeating body parts and how they come to be

Virus-inspired DNA needle could pave the way for better medicines

New model shows how behavioral flexibility affects animal evolution

Aquaculture is shifting toward less sustainable species, study says

Precision work prior to cell division: How enzymes optimize DNA structure

Gemini South confirms long-suspected link between the composition of exoplanets and their host stars

A global butterfly index could advance insect conservation worldwide

Time lapse video shows trees give visual clues as they rehydrate each spring

Molecular system can distinguish and neutralize cancer cells, paving the way for 'smart' drugs

Gravitational waves suggest a 'forbidden zone' for stellar-origin black holes

New microporous aerogel uses van der Waals forces for flexible, moldable shaping

Why some predators thrive near people: A Kenya hyena study highlights tolerance

Q&A: What to know about NASA's first crewed moon landing since 1972

Hidden features in X-rays could radically change how we measure and understand them

Queen bumblebees can breathe underwater for days. We discovered how

Atomic-level simulations reveal rotational mechanism behind a critical biomolecular motor

What's driving Salt Lake City's downward emissions trends?

Superconductivity switched on in material once thought only magnetic

Book explores small talk and big silence in evangelical communities

Accuracy test for protein language models shines light into AI 'black box'

Social roles are neither predetermined nor set in stone, study in mice suggests

Why subduction zones act as the Earth's 'gold kitchens'

Helical liquid crystals can flip light's chirality under ultralow electric fields

Study suggests platforms invite third-party analytics to raise seller prices

Free software lets laptops simulate how aging evolves under selection

Inclusive schools see fewer young people drop out and become 'NEET'

Ghost bat dialects emerge across colonies, study suggests

Only one-quarter of Colombia's protected areas effectively protect freshwater fishes, researchers find

A new crab is settling in the Mediterranean: Early evidence of establishment of a Lessepsian species in the Ionian Sea

One of cholera's great enemies is found in the human gut

SpaceX files to go public, paving way for record stock offering

High nickel concentrations in Martian bedrock point to potential biosignatures

Vegetation patterns and ecosystem resilience: Why their relationship status is 'complicated'

Social media enables mapping of public perceptions of redlining across the U.S.

A color-changing phosphor can encode information

Analysis tracks 20 years of coastal species shifts in the Gulf of Maine