/ en-us Â鶹ŇůÔş internet news portal provides the latest news on science including: Â鶹ŇůÔşics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. High school students learn that Pavlov's dogs were conditioned to associate the sound of a bell with getting food. The association was so strong that the dogs would begin to salivate when they heard the bell, before there was even a whiff of food. When they were finally presented with the food, they ate it. /news/2025-07-pavlov-dogs-conditioned-animals-interact.html Plants & Animals Molecular & Computational biology Tue, 15 Jul 2025 16:20:12 EDT news671815205 Radiation damage remains the principal limitation in achieving higher resolution in cryo-electron microscopy (cryo-EM), despite advances in cryoprotection and low-dose imaging. Researchers have proposed that using pulsed electron beams could allow relaxation between energy deposition events, potentially reducing damage. However, the actual existence of such a mitigation effect remains unclear. /news/2025-07-ultrafast-cryo-em-assumptions-pulsed.html Cell & Microbiology Biotechnology Tue, 15 Jul 2025 10:40:05 EDT news671793547 Artificial intelligence systems like ChatGPT are notorious for being power-hungry. To tackle this challenge, a team from the Center for Optics, Photonics and Lasers (COPL) has come up with an optical chip that can transfer massive amounts of data at ultra-high speed. As thin as a strand of hair, this technology offers unrivaled energy efficiency. /news/2025-07-significantly-optical-chip.html Optics & Photonics Fri, 11 Jul 2025 09:30:03 EDT news671444755 For decades, scientists have looked to light as a way to speed up computing. Photonic neural networks—systems that use light instead of electricity to process information—promise faster speeds and lower energy use than traditional electronics. /news/2025-07-multisynapse-optical-network-outperforms-digital.html Optics & Photonics Wed, 09 Jul 2025 14:05:19 EDT news671288716 In the late 2010s, when Assistant Professor Flavio Lehner worked for the National Center for Atmospheric Research in Boulder, Colorado, water managers often asked him about the drought in the Southwest. Was the low precipitation simply an unlucky draw in the cycle of long-term weather variations? What role did climate change play? Most importantly, was the drought there to stay? /news/2025-07-climate-aerosols-persistent-drought-rainfall.html Earth Sciences Environment Wed, 09 Jul 2025 12:28:04 EDT news671282881 Colleges and universities are struggling to stay afloat. /news/2025-06-traditional-college-major-students-rapidly.html Economics & Business Education Mon, 30 Jun 2025 14:20:04 EDT news670512001 A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the massive current of Arctic air that regulates weather for much of the Northern Hemisphere. /news/2025-06-climate-link-wild-winter-jet.html Earth Sciences Environment Thu, 26 Jun 2025 09:00:01 EDT news669638701 For many families, summer camp is a rite of passage representing friendship, fun and freedom. But for families of children with neurodevelopmental disabilities, it can be a season of rejection, stress and exclusion. /news/2025-06-neurodiverse-kids-children.html Social Sciences Education Wed, 25 Jun 2025 10:37:05 EDT news670066622 Sensorineural hearing loss (SNHL) is the most prevalent form of permanent hearing loss, affecting over 6% of the global population, according to the World Health Organization. It results from damage to sensory hair cells in the inner ear or to the auditory nerve pathways that transmit sound to the brain. /news/2025-06-exosome-therapy-approach-sensorineural-loss.html Bio & Medicine Tue, 24 Jun 2025 14:39:05 EDT news669994741 SpaceX has reset the countdown clock for its next human spaceflight, targeting an early Sunday morning launch of the private Axiom Space Ax-4 mission. /news/2025-06-spacex-retargets-crewed-axiom-space.html Space Exploration Thu, 19 Jun 2025 10:20:09 EDT news669546880 Lasers have widespread applications as a light source in a variety of fields, including manufacturing, medicine, high-speed communications, electronics, and scientific research. /news/2025-06-mode-lasers-tunable-pulse-duration.html Optics & Photonics Tue, 17 Jun 2025 14:57:04 EDT news669391022 As NASA prepares to send astronauts back to the moon for the first time in over 50 years, new research from the University of Technology, Sydney (UTS) has found that lunar dust is less harmful to human lung cells than previously feared, and significantly less toxic than common Earth-based air pollution. /news/2025-06-abrasive-lunar-toxic-city-pollution.html Space Exploration Tue, 17 Jun 2025 10:15:31 EDT news669374127 I have been researching the possibility of living on Mars for several years. But it took an invitation to give a talk about space at HMP Erlestoke in England—a category C men's prison—to make me realize that there are a surprising number of similarities between the challenges that would be faced by would-be Martians and daily life in jail. /news/2025-06-mars-lessons-conditions-prisons.html Space Exploration Mon, 16 Jun 2025 10:13:05 EDT news669287582 A new platform for engineering chiral electron pathways offers potential fresh insights into a quantum phenomenon discovered by chemists—and exemplifies how the second quantum revolution is fostering transdisciplinary collaborations that bridge physics, chemistry, and biology to tackle fundamental questions. /news/2025-06-quantum-spirals-programmable-platform-ways.html Condensed Matter Quantum Â鶹ŇůÔşics Fri, 13 Jun 2025 14:00:03 EDT news668940541 A chartered spaceflight for India, Poland and Hungary's first astronauts in decades has been delayed indefinitely because of leak concerns at the International Space Station. /news/2025-06-space-station-leak-delay-astronauts.html Space Exploration Thu, 12 Jun 2025 14:52:44 EDT news668958758 In just over 20 years, the northward shift of the subtropical jet stream—a high-altitude airflow—caused by climate change has reduced primary production in the northwestern Mediterranean by about 40%. This marked reduction—the highest ever described—affects the base of the marine food web and could significantly impact living resources, ecosystem health and marine dynamics in this region of the Mediterranean. /news/2025-06-climate-impacts-biological-production-mediterranean.html Environment Thu, 12 Jun 2025 13:40:01 EDT news668953578 A study nearly 10 years in the making has shed new insight into how oxides can regularly sustain themselves, using the oxygen inherent in their own structures. /news/2025-06-oxide-catalysts-sustain-reactors.html Analytical Chemistry Wed, 11 Jun 2025 15:57:14 EDT news668876222 Food scientists at the University of Illinois Urbana-Champaign identified the optimal fermentation conditions for pulses ― the dried edible seeds of legumes ― that increased their antioxidant and antidiabetic properties and their soluble protein content. /news/2025-06-fermenting-legume-pulses-antioxidant-antidiabetic.html Agriculture Sat, 07 Jun 2025 06:18:38 EDT news668495911 Researchers from the University of Rochester and University of California, Santa Barbara, engineered a laser device smaller than a penny that they say could power everything from the LiDAR systems used in self-driving vehicles to gravitational wave detection, one of the most delicate experiments in existence to observe and understand our universe. /news/2025-06-laser-smaller-penny-ultrafast.html Optics & Photonics Mon, 02 Jun 2025 09:07:03 EDT news668074021 A new avenue for targeted drug delivery has been proposed by researchers from The Grainger College of Engineering at the University of Illinois Urbana-Champaign. Their findings, published in Materials Today Bio, report the first successful application of metabolic labeling in platelets. /news/2025-05-metabolic-platelets-possibilities-drug-delivery.html Cell & Microbiology Biotechnology Thu, 29 May 2025 16:22:04 EDT news667754521 Imagine cells navigating through a complex maze, guided by chemical signals and the physical landscape of their environment. A team of researchers at the University of Maryland, Baltimore County (UMBC) has contributed to an important discovery about how cells move, or migrate, through this maze of bodily tissues, using the fruit fly egg chamber as a model system. Potential implications include better understanding of diseases like cancer and advancing medical treatments. /news/2025-05-mathematical-imaging-reveal-migrating-cells.html Cell & Microbiology Molecular & Computational biology Thu, 29 May 2025 15:12:04 EDT news667750322 Cohesin is a protein that forms a ring-shaped complex which wraps and alters the DNA molecule shape. It moves through the DNA and creates specific loops in the genetic material which determine the architecture of the genome and gene expression. /news/2025-05-uncover-mechanism-linking-cohesin-complex.html Molecular & Computational biology Thu, 29 May 2025 15:00:58 EDT news667749653 Being cut off in traffic, giving a presentation or missing a meal can all trigger a suite of physiological changes that allow the body to react swiftly to stress or starvation. Critical to this "fight-or-flight" or stress response is a molecular cycle that results in the activation of protein kinase A (PKA), a protein involved in everything from metabolism to memory formation. Now, a study by researchers at Penn State has revealed how this cycle resets between stressful events, so the body is prepared to take on new challenges. /news/2025-05-flight-response-resets-molecular.html Biochemistry Analytical Chemistry Wed, 28 May 2025 15:26:41 EDT news667664788 A new study reveals the biological secret to the Zika virus's infectious success: Zika uses host cells' own "self-care" system of clearing away useless molecules to suppress the host proteins that the virus has employed to get into those cells in the first place. /news/2025-05-zika-virus-cells-host.html Cell & Microbiology Molecular & Computational biology Tue, 27 May 2025 12:49:50 EDT news667568980 Coral reefs are vital to marine biodiversity, but their livelihood is under threat due to climate instability and the impacts of human activities. /news/2025-05-healthy-reefs-boost-coral-settlement.html Ecology Thu, 22 May 2025 10:34:03 EDT news667128842 Cells are the smallest units of life. But even within the same tissue or organ, they are not all identical. New variations arise continuously during cell proliferation. While genetic mutations alter the DNA sequence, epigenetic changes influence gene activity. /news/2025-05-stress-generations-cancer-cells-tracked.html Cell & Microbiology Biotechnology Wed, 21 May 2025 14:40:04 EDT news667057201 We've all felt the sting of guilt when fruit and vegetables go bad before we could eat them. Now, researchers from MIT and the Singapore-MIT Alliance for Research and Technology (SMART) have shown they can extend the shelf life of harvested plants by injecting them with melatonin using biodegradable microneedles. /news/2025-05-microneedle-technology-melatonin-shelf-life.html Biotechnology Agriculture Wed, 21 May 2025 13:02:58 EDT news667051374 Astrobee is a free-flying robotic system developed by NASA that is made up of three distinct cube-shaped robots. This system was originally designed to help astronauts who are working at the International Space Station (ISS) by automating some of their routine manual tasks. /news/2025-05-astrobee-soft-cargo-source-simulator.html Space Exploration Mon, 19 May 2025 08:00:01 EDT news666624973 Researchers at the University of Liège (BE) have designed a high-performance, open-access continuous flow process to safely produce key antibacterial drugs from bio-based furfural. The results of the study—published in Angewandte Chemie International Edition—are available as open access. /news/2025-05-enables-safer-production-antibacterial-drugs.html Biochemistry Analytical Chemistry Fri, 16 May 2025 11:38:03 EDT news666614281 At this moment, there are approximately 35,000 tracked human-generated objects in orbit around Earth. Of these, only about one-third are active payloads: science and communications satellites, research experiments, and other beneficial technology deployments. /news/2025-05-deploying-solution-space-debris.html Space Exploration Thu, 15 May 2025 09:27:05 EDT news666520022