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Something is amiss in the Butterfly Nebula. When astronomers compared two exposures of this planetary nebula that had been taken by the Hubble Space Telescope in 2009 and 2020, they saw dramatic changes in the material within its 'wings.' Powerful winds are apparently driving complex alterations of material within the Butterfly Nebula, behavior not seen in planetary nebulae to date. The researchers want to understand how such activity is possible from what should be a 'sputtering, largely moribund star with no remaining fuel.'

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A chemical used in the production of toilet paper and 'forever chemicals' have been found in the bodies of orcas in B.C. , including the endangered southern resident killer whales. Scientists analyzed tissue samples from six southern resident killer whales and six Bigg's whales stranded along the coast of B.C. from 2006 to 2018, according to a recent study. They discovered that chemical pollutants are prevalent in killer whales, with a chemical often found in toilet paper one of the most prevalent in the samples studied, accounting for 46 per cent of the total pollutants identified.

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Vital winter ice road infrastructure may be cracking and sinking under the load of an unseasonably warm start to the new year across Europe and North America. New research warns that ice roads, essential for moving people, food, medicine and fuel in remote northern communities, as well as heavy machinery used by industry, may become unsustainable as the climate warms. This poses significant issues this century.

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Translating electrochemical performance of large format batteries to microscale power sources has been a long-standing technological challenge, limiting the ability of batteries to power microdevices, microrobots and implantable medical devices. Researchers have created a high-voltage microbattery (> 9 V), with high-energy and -power density, unparalleled by any existing battery design.

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A team that has used two-photon imaging technology to show the creation and elimination of synapses between neurons in the brains of live mice.

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Researchers combine a polymer coating with silicon dioxide nanostructures to create a coating to prevent fogging and unwanted reflections. The technique solves a common problem for sensors such as lidar used in autonomous cars.

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The movement of people across the Bering Sea from North Asia to North America is a well-known phenomenon in early human history. Nevertheless, the genetic makeup of the  people who lived in North Asia during this time has remained mysterious due to a limited number of ancient genomes analyzed from this region. Now, researchers describe genomes from ten individuals up to 7,500 years old that help to fill the gap and show geneflow from people moving in the opposite direction from North America to North Asia.

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More than 2,500 genes exhibit significant sex differences in expression in mouse alveolar type II cells (AT2s), important for keeping the lungs functioning, potentially explaining sex biases in the prevalence and severity of lung diseases. In particular, very high numbers of X-linked genes escape transcriptional silencing in lung alveolar type 2 (AT2s) cells, researchers report.

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Unraveling the origin stories of the Tissint meteorite's organic compounds can help scientists understand whether the Red Planet ever hosted life, as well as Earth's geologic history.

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A new model quantifies emissions that will be generated by computers on fully autonomous vehicles. If self-driving cars are widely adopted, their emissions will rival those generated by all the data centers in the world today. Keeping emissions at or below those levels would require hardware efficiency to improve more rapidly than its current pace.

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A new study demonstrates that electrodes can be made using just screen printing, creating a stretchable, durable circuit pattern that can be transferred to fabric and worn directly on human skin. Such wearable electronics can be used for health monitoring in hospitals or at home. Current commercial manufacturing of wearable electronics requires expensive processes involving clean rooms. While some use screen printing for parts of the process, this new method relies wholly on screen printing, which can make manufacturing flexible, wearable electronics much easier and less expensive.

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A study examined the effects of anthropogenic noise on cognition, beak color, and growth in the zebra finch. Researchers first tested adult zebra finches on a battery of cognition assays while they were exposed to playbacks of urban noise versus birds tested without noise. Urban noises caused the birds to take longer to learn a novel foraging task and to learn an association-learning task. Urban noise exposure also resulted in treated males to develop less bright beak coloration, and females developed beaks with brighter orange coloration, respectively, than untreated birds. Findings suggest that urban noise exposure may affect morphological traits, such as beak color, which influence social interactions and mate choice.

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Combing computational physics with experimental data, researchers have developed computer models for determining a drug candidate's ability to target and bind to proteins within cells.

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Scientists have reported something unexpected about the distinct populations of stars that make up the Triangulum galaxy: In this satellite galaxy, a close companion of the much larger Andromeda galaxy, old and new stars occur in separate parts of the galaxy's structure, something not seen in galaxies like our own and so far not reporter for other satellite galaxies.

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NGC 346, one of the most dynamic star-forming regions in nearby galaxies, is full of mystery. Now, it is less mysterious with new findings from NASA's James Webb Space Telescope.

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NASA's James Webb Space Telescope has imaged the inner workings of a dusty disk surrounding a nearby red dwarf star. These observations represent the first time the previously known disk has been imaged at these infrared wavelengths of light. They also provide clues to the composition of the disk.

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Researchers confirmed an exoplanet, a planet that orbits another star, using NASA's James Webb Space Telescope for the first time. Formally classified as LHS 475 b, the planet is almost exactly the same size as our own, clocking in at 99% of Earth's diameter.

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Amino acids make up millions of proteins that drive the chemical gears of life, including essential bodily functions in animals. Because of amino acids' relationship to living things scientists are eager to understand the origins of these molecules. After all, amino acids may have helped spawn life on Earth after being delivered here about 4 billion years ago by pieces of asteroids or comets.

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Electric vehicles, powered by macroscopic electric motors, are increasingly prevalent on our streets and highways. Now a multidisciplinary team has made an electric motor you can't see with the naked eye: an electric motor on the molecular scale. This early work -- a motor that can convert electrical energy into unidirectional motion at the molecular level -- has implications for materials science and particularly medicine, where the electric molecular motor could team up with biomolecular motors in the human body.

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Researchers describe five new deep-sea squat lobster species. Combining molecular data and microCT their findings show a wider species distribution range and shallower genetic diversity, calling for a revision of the current classification of squat lobsters.