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Life Sciences

Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.

447,757 articles | 2542 topics

Health and Medicine

Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.

431,843 articles | 751 topics

Social Sciences

Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.

260,756 articles | 745 topics

Physical Sciences

Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.

257,913 articles | 1552 topics

Applied Sciences and Engineering

Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.

225,386 articles | 998 topics

Scientific Community

Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.

193,043 articles | 157 topics

Space Sciences

Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.

29,662 articles | 175 topics

Research Methods

Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.

21,889 articles | 139 topics

Mathematics

Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.

3,023 articles | 113 topics

New aerosol observing technique turns gray skies to blue

A new detection technique using polarized light helps accurately measure aerosol composition, size, and global distribution. The Aerosol Polarimetry Sensor instrument measures aerosols over land, providing greater accuracy compared to previous methods.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Oxford's Dr. Rosalind Rickaby receives 2009 Rosenstiel Award

Dr. Rosalind Rickaby, a biogeochemist at Oxford University, has been awarded the 2009 Rosenstiel Award for her groundbreaking research on marine phytoplankton and their impact on the Earth's climate. Her innovative approaches are helping to establish a record of the influences these microorganisms have had on the planet.

Scientist models the mysterious travels of greenhouse gas

A University of Michigan researcher has developed a method to reconcile data on greenhouse gas sources and sinks, improving the accuracy of climate predictions. By analyzing atmospheric sampling locations and satellite data, she aims to predict how carbon levels will evolve in the future.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Discovery of methane reveals Mars is not a dead planet

A team of NASA and university scientists has detected methane in the Martian atmosphere, indicating the planet may be biologically active. The discovery was made using spectrometers at the Infrared Telescope Facility and W.M. Keck telescope, revealing three spectral features that are a definitive signature of methane.

Climate scientist wins new $500K award

Wallace Broecker, a renowned geochemist, receives the Frontiers of Knowledge Award for his pioneering work on ocean-atmosphere interactions and early warnings about climate change. He will donate the $527,000 prize to support research on climate change.

Lifecycles of tropical cyclones predicted in global computer model

The Nonhydrostatic ICosahedral Atmospheric Model (NICAM) successfully simulated the lifecycles of two real tropical cyclones. The model's realistic representation of clouds and atmospheric conditions allowed it to reproduce the birth, path, and evolution of the observed cyclones.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Study: Did early climate impact divert a new glacial age?

Researchers found evidence of increased greenhouse gases in ancient ice core records, suggesting that human influence on climate started with large-scale agriculture and deforestation. The study challenges the traditional view that the Industrial Revolution marked the beginning of human-induced climate change.

Looking for extraterrestrial life in all the right places

Researchers are exploring the possibility of life on giant, cold planets called Super-Earths that could harbor a liquid ocean beneath their icy surface. The team uses a novel approach involving gravitational microlensing to detect these potentially habitable worlds.

Hubble finds carbon dioxide on an extrasolar planet

Astronomers have discovered carbon dioxide on a Jupiter-sized planet orbiting another star, HD 189733b. The detection is significant as it could be a sign of biological activity, and further studies will focus on characterizing the planet's atmosphere to determine its habitability.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Growth in the global carbon budget

The new global carbon budget shows unprecedented acceleration of CO2 emissions and atmospheric accumulation, with natural sinks growing slower than emissions. Decreasing forest cover mainly due to deforestation is responsible for a significant portion of emissions, while oceans' carbon uptake has decreased by 10 million tons.

'Chemical equator' discovery will aid pollution mapping

Researchers found a 50 km wide atmospheric chemical equator in cloudless skies of the Western Pacific, dividing pollutants between the two hemispheres. The discovery will aid pollution mapping and climate assessment by improving simulations of pollutant transport.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Boston University astronomers en route to Mars

Boston University's John T. Clarke leads an engineering and astronomy team on NASA's MAVEN mission to study Martian atmosphere changes. The team aims to solve the mystery of Mars' lost atmosphere, exploring possibilities of water's escape or freezing into the planet's crust.

New analysis of earthquake zone raises questions

The Blanco Transform Fault Zone has experienced over 1,500 earthquakes of magnitude 4.0 or greater in the past 40 years, with many thousands of smaller quakes. The region's tectonic stress may affect the Cascadia Subduction Zone, potentially leading to a major earthquake.

New clues to air circulation in the atmosphere

A new observational study describes the world's weather patterns and climate influences by revealing four distinct atmospheric circulation cells. The cells create temperature and wind distribution in the mid-latitudes, including the UK, Europe, and US, which was previously not fully understood.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Forward step in forecasting global warming

Researchers at Arizona State University have made a breakthrough in understanding the effect of brown carbon on climate change by developing a novel technique to measure its optical properties. This discovery could lead to more accurate forecasting of global warming activity, as current models often overlook this key component.

Tracking down abrupt climate changes

Researchers discovered an extreme cooling event 12,700 years ago in Western Europe, with sediments revealing a short-term shift in atmospheric circulation. The findings suggest the climate system is not fully understood, with many puzzles remaining to be solved.

Eruptions wiped out ocean life 94 million years ago

Massive underwater volcanic eruptions occurred 23 thousand years before a global oceanic anoxic event, leading to the extinction of ocean life. The eruptions released nutrients and oxygen-depleting gases, causing a chain reaction that ultimately led to the mass extinction.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Organizing an Earth Systems Science Agency

The article proposes merging NOAA and USGS to create an independent Earth Systems Science Agency (ESSA) to address climate change, freshwater availability, and biodiversity loss. The new agency would have a comprehensive perspective on both environmental and resource systems.

Ice cores map dynamics of sudden climate changes

Researchers analyzed Greenland ice cores to understand sudden climate changes at the end of the last ice age. The results show that climatic shifts occurred rapidly over just a few years, with dramatic changes in temperature and atmospheric circulation.

New findings on ocean nitrogen

A new study by an international team of scientists found that around one-third of the nitrogen entering the world's oceans from the atmosphere is man-made. This has significant implications for global climate change as it leads to increased marine biological activity and CO2 uptake, producing nitrous oxide emissions.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Northern lights glimmer with unexpected trait

Scientists have detected polarized glow in Northern Lights, revealing clues to the composition of Earth's upper atmosphere and magnetic field configuration. The phenomenon also offers a way to determine magnetic field configurations on other planets.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Modern physics is critical to global warming research

Researchers like Brad Marston use statistical physics to analyze climate patterns, providing insights into the driving concepts behind global warming. By focusing on the larger mechanisms that drive changes in rainfall, scientists can improve their understanding of climate change and its effects.

AGU journal highlights -- Feb. 26, 2008

A study on Mercury's gravity reveals a comet-like tail extending over 2.5 million kilometers away from the planet. Meanwhile, research finds that rising carbon dioxide levels are linked to increased ground-level ozone concentrations, harming lung function and respiratory systems.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

NASA co-sponsors ocean voyage to probe climate-relevant gases

Scientists will embark on a six-week research expedition to measure turbulence, waves, and bubbles in the Southern Ocean to improve the accuracy of climate models. The goal is to understand how gases important to climate change move between the atmosphere and ocean under high winds and seas.

The mystery of Jupiter's jets uncovered

Research into giant perturbations on Jupiter reveals that jet streams go deep into the planet's atmosphere, with storms forming among deepest clouds. The team used a combination of telescopes to observe the phenomenon, finding surprising similarities with previous cases.

Seismic images show dinosaur-killing meteor made bigger splash

New seismic images of the Chicxulub crater suggest the asteroid that killed the dinosaurs landed in deeper water than previously thought. This led to a larger release of water vapor into the atmosphere, which could have exacerbated the effects of acid rain and climate change.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Polarization technique focuses limelight

An international team of astronomers has successfully detected and monitored the polarized light scattered in an exoplanet's atmosphere for the first time. The study reveals that the exoplanet, HD189733b, has a swollen atmosphere with particles scattering blue light, similar to Earth's atmosphere.

Recipe for a storm: The ingredients for more powerful Atlantic hurricanes

University of Wisconsin-Madison scientists have found that a basin-wide circulation pattern drives Atlantic hurricane activity. The study reveals that Atlantic hurricanes will be more sensitive to climate changes than storms in other ocean basins, with warmer oceans indicating ideal conditions for development. Understanding this relati...

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Like it or not, uncertainty and climate change go hand-in-hand

Researchers at the University of Washington have devised a theory that links uncertainty in climate change with climate sensitivity. The theory, published in Science, provides a yardstick for testing climate models and shows that small uncertainties can be amplified into large ones.

Scientists estimate state-by-state mercury emissions from US fires

A new study estimates that US forest fires release about 30% of the nation's total mercury emissions, primarily affecting the environment and human health. The Southeast region emits the most mercury, followed by Alaska and California, highlighting the need for better protection measures.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Increase in atmospheric moisture tied to human activities

Researchers have identified human-induced changes in atmospheric moisture content using rigorous statistical methods. The study found that the atmosphere's water vapor content has increased by about 0.41 kg/m³ per decade since 1988, primarily due to human-caused greenhouse gas emissions.

First solar dynamic observatory instrument arrives at Goddard

The Extreme Ultraviolet Variability Experiment (EVE) will measure the sun's ultraviolet radiation changes, causing outages in radio communications and affecting satellites. EVE will provide space weather forecasters with warnings of potential communications and navigation outages every ten seconds.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Tipping points

Researchers explore 'tipping points' in agriculture, highlighting the need to understand regime shifts to sustain ecosystem functions. The symposium identifies potential tipping points related to water and agriculture that could have major global consequences.

Water, water everywhere -- on an extrasolar planet

Astronomers have detected water vapor in the atmosphere of HD 189733b, a gas giant 63 light-years away. The presence of water vapour suggests that the planet may have had liquid water on its surface at some point, increasing hopes for detecting life on other rocky planets.

Study sheds light on Earth's CO2 cycles

A new study reveals two ancient CO2 pulses from the southern ocean around Antarctica, shedding light on Earth's CO2 cycles and their implications for climate change. The research tracked CO2 from the deep ocean to the upper ocean and atmosphere, providing insights into natural CO2 cycles and human-caused climate change.

Diminishing dinosaur steps saved by laser and laptop

Researchers at the University of Manchester used a laser scanning system to create a detailed 3D model of dinosaur tracks in Spain. The portable RIEGL LMS Z420i scanner allowed for rapid and high-resolution mapping of the fragile site, preserving important information on dinosaur locomotion.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

A helping hand for our national obsession

A team of climate scientists will measure the influence of Greenland's atmosphere on Northern European weather, aiming to improve forecast accuracy. The research will also fill gaps in existing climate change models, enhancing long-term predictions.

NASA probes the sources of the world's tiny pollutants

A recent study by NASA tracked aerosol sources and their impact on climate, finding that black carbon from Southeast Asian residential sources contributes significantly to Arctic warming. The researchers also discovered that biomass-burning aerosols produce cooling effects in the atmosphere, which partially offset greenhouse gas emissi...

Airborne dust causes ripple effect on climate far away

Tiny airborne dust particles from Africa's desert regions can alter surface and air temperatures globally, causing a 'teleconnection' effect. Researchers found that North African dust affects the Caspian Sea and central Asia while having a cooling effect on the region.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Increase in carbon dioxide emissions accelerating

New research shows carbon dioxide emissions have accelerated by over 2.5% per year since the 2000s, despite global efforts to reduce emissions. The findings indicate that recent emission-reducing measures have had little impact on slowing down growth rates.

Historic volcanic eruption shrunk the mighty Nile River

A recent study found that Iceland's Laki volcanic event significantly changed atmospheric circulations, causing unusual temperature and precipitation patterns that peaked in the summer of 1783. This resulted in record low river levels on the Nile River for up to a year due to reduced evaporation and increased temperatures.

Central American fires impact US air quality and climate

Pollutants from Central American biomass burning influence air quality and climate in the United States, particularly visibility and surface air temperatures. The smoke plumes also trap aerosols in the lower atmosphere, worsening air quality.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.