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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

Satellite movie shows Tropical Storm Ana headed to British Columbia, Canada

Tropical Storm Ana has moved west of the Hawaiian Islands and into the open waters of the Central Pacific Ocean, strengthening into a hurricane and weakening back to a tropical storm. The storm is expected to bring strong winds and heavy rainfall to British Columbia's central coast, with wind warnings posted along some coastal sections.

NASA sees a 'Zombie' tropical storm kick off Halloween week

Tropical Depression 9 reformed into Tropical Storm Hanna, becoming a 'zombie' storm that brought strong thunderstorms and heavy rainfall to Nicaragua and Honduras. The National Hurricane Center issued a tropical storm warning for the area, predicting life-threatening flash floods and mudslides.

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.

NASA sees Tropical Storm Ana still vigorous

Tropical Storm Ana was still generating moderate rainfall when NASA's TRMM satellite observed it on October 22. The storm moved northward with a gradual increase in speed, and is expected to be absorbed by an extra-tropical low pressure area near British Columbia, Canada.

Tropical Depression 9 forms in Gulf of Mexico

Tropical Depression 9 has formed over the western Bay of Campeche and is expected to produce life-threatening flash floods in the Yucatan Peninsula of Mexico. The depression is predicted to intensify into a tropical storm before landfall.

NASA's Terra Satellite sees wind shear affecting Tropical Storm Ana

Tropical Storm Ana was impacted by strong southwesterly wind shear, causing the bulk of clouds and showers to be pushed north and east of its center. The storm's minimum central pressure is estimated at 1005 millibars, with forecasters predicting some strengthening through early Friday.

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.

NASA's Aqua satellite sees Tropical Storm Ana still affecting Hawaii

Tropical Storm Ana is still affecting parts of Hawaii on October 20, according to NASA's Aqua satellite imagery. The storm's eastern quadrant covered the islands of Kauai and Niihau, with strong southwesterly wind shear pushing clouds and showers north and east of the center of circulation.

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.

NASA's HS3 mission continues with flights over Hurricane Gonzalo

The WB-57 aircraft flew over Hurricane Gonzalo on Oct. 15 carrying two HS3 mission instruments called HIWRAP and HIRAD, providing unique observations of sea surface wind speed, temperature, and rain. The data gathered will advance understanding and predictability of hurricane intensity.

Satellites sees a question mark in Tropical Storm Ana

Tropical Storm Ana is nearing hurricane strength and expected to become a hurricane before reaching the Big Island of Hawaii. The storm's outer clouds are already affecting the island, causing heavy rainfall and potentially life-threatening flash floods and mudslides.

NASA study finds 1934 had worst drought of last thousand years

A new NASA study reconstructs North American drought history over the last 1,000 years and finds that the 1934 drought was the driest and most widespread of the past millennium. The drought was caused by a high-pressure system and dust storms, which suppressed rainfall and led to severe conditions across western North America.

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.

NASA study finds 1934 had worst drought of last thousand years

A new NASA study reconstructing North American drought history over the last 1,000 years found that 1934 was the driest and most widespread drought of the millennium. The severity was attributed to a combination of high-pressure systems and dust storms caused by poor land management practices.

New forecasting method: Predicting extreme floods in the Andes mountains

A new forecasting method uses complex networks analysis to predict extreme rainfall events in the South American Andes. The approach, developed by an international team of scientists, can accurately forecast 90% of extreme rainfall events under El Niño conditions and 60% under other conditions.

Fluke 87V Industrial Digital Multimeter

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

NASA gathering data on Super Typhoon Vongfong as Japan prepares

NASA's TRMM and Aqua satellites provide forecasters with detailed data on Super Typhoon Vongfong's cloud extent, rainfall rates, and distribution. The storm is expected to slowly weaken as it moves north, passing just east of Okinawa before turning northeast and changing to an extra-tropical cyclone over Japan.

Satellite movie shows Hurricane Simon's remnants moving through US

NASA's GOES-East satellite captures Hurricane Simon's landfall in Mexico and movement into the U.S. Southwest, with remnants expected to reach the central Plains and Midwest on Oct. 9-10. Heavy rain, including a threat of flash flooding, is forecast for eastern Kansas and western Missouri.

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 sees Simon spreading over US Southwest

NASA's Aqua satellite captured infrared data on the thunderstorms expected to bring flash flooding to parts of Arizona and other desert regions in the US Southwest. The National Weather Service warned of up to an inch of rainfall possible across Arizona, leading to potential flash flooding.

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.

Satellite sees Tropical Storm Simon over Baja California

Tropical Storm Simon is weakening over Mexico's Baja California, expected to produce 3-5 inches of rainfall with isolated amounts up to 8 inches. Heavy rainfall could cause flash flooding and mudslides, while winds remain a threat.

NASA eyes Super typhoon Vongfong

Typhoon Vongfong strengthened into a Super typhoon on October 7, with cloud top temperatures indicating high rainfall capabilities. The storm is moving westward, creating massive ocean swells, and forecasters predict it will turn north by October 12.

NASA adds up Japan's soaking rains from Typhoon Phanfone

Typhoon Phanfone brought heavy rainfall to Japan, with the most intense rain occurring west of Tokyo and over the Pacific Ocean southeast of Japan. The TRMM satellite provided near-real-time data on rainfall totals, revealing areas with rainfalls exceeding 275 mm (10.8 inches) in central Japan.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Tropical Storm Simon says, 'US Southwest is an arm's reach'

Tropical Storm Simon is expected to bring heavy rainfall and rough surf to the western United States, particularly the desert Southwest. The National Hurricane Center forecasts storm total rainfall amounts of 3-6 inches in central and northern Baja California and Sonora, Mexico, with isolated areas reaching up to 9 inches.

NASA sees Typhoon Vongfong leaving the Mariana Islands

Typhoon Vongfong has exited the Mariana Islands and is now tracking west-northwest towards an area of low pressure. The typhoon has maximum sustained winds near 90 knots and is generating rough seas in the western North Pacific Ocean.

Satellite sees Tropical Storm Simon crawling up Western Mexico's coastline

NASA's GOES-West satellite captured an infrared image of Tropical Storm Simon on Oct. 3, showing strong thunderstorms circling the storm's center and rainfall in western Mexico. The storm is expected to produce total rainfall amounts of 3-5 inches with isolated amounts up to 8 inches, causing flash flooding and mudslides.

Apple iPhone 17 Pro

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

Fall in monsoon rains driven by rise in air pollution, study shows

A recent study suggests that emissions from human activity have caused a decline in monsoon rainfall over the past 50 years. The research, published in Geophysical Research Letters, found that rising levels of anthropogenic aerosols are responsible for the decrease, which affects billions of people primarily in India and parts of Africa.

Celestron NexStar 8SE Computerized Telescope

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

Smoke still rising from King Fire in California

The King Fire in California has burned over 96,000 acres since its start on September 13, 2014. A recent rain system brought minimal fire activity, but a new low-pressure system may impact the fire's spread.

NASA's TRMM satellite tallies Hurricane Odile's heavy rainfall

Hurricane Odile brought extreme rainfall to Mexico's Baja California peninsula and southwestern United States, with estimated totals reaching almost three feet. The TRMM satellite analyzed real-time data to track the storm's impact, revealing highest rainfall totals of over 160 mm in northwestern Texas.

King Fire rages on in Eldorado National Forest

The King Fire is an arson-caused fire that began on Sept. 13, 2014, fueled by hot, dry conditions, large amounts of fuel, and winds. It has grown to 82,018 acres in size and is currently 17% contained, prompting evacuations of over 2,800 people

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

NASA, NOAA satellites show Odile's remnant romp through southern US

The TRMM satellite detected heavy rainfall rates over 111 mm/h near El Paso, Texas, with thunderstorm tops reaching up to 13 km. The GOES-West infrared image showed a large area of clouds associated with the remnants over New Mexico and Texas, posing a flash flood threat for parts of the region.

NASA sees Hurricane Edouard enter cooler waters

Hurricane Edouard's minimum central pressure was nearly as low as when it was a category 3 hurricane. The storm is expected to weaken and become post-tropical before winding up west of the Azores in a few days.

Meta Quest 3 512GB

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

NASA sees Odile soaking Mexico and southwestern US

Tropical Storm Odile is generating strong thunderstorms with heavy rainfall over northern Mexico and the southwestern US. Rainfall rates from TRMM satellite measurements reached almost 130 mm per hour northeast of the storm's center.

Rules of thumb for climate change turned upside down

A new study reveals climate change's complex effects on land and water, contradicting the 'DDWW' principle. While some regions become drier or wetter, others experience no trends, highlighting the need for a more nuanced understanding of climate change.

Tropical Storm Odile taken on by 2 NASA satellites

The TRMM satellite detected powerful thunderstorms near Odile's center, dropping rain at a rate of over 196 mm/h. The combined data from TRMM and Aqua satellites showed the coldest cloud tops in storms circling Odile's center, with temperatures as low as -63F/-53C.

NASA tracks Norbert moisture to Arizona's drenching thunderstorms

Post-tropical storm Norbert generated drenching thunderstorms over Arizona, with TRMM satellite data showing rainfall rates of over 2 inches per hour. The moisture from Norbert caused flooding over inland areas of southern California and led to a state of emergency in Arizona.

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.

Carnegie Mellon's smart headlights spare the eyes of oncoming drivers

Researchers at Carnegie Mellon University developed a programmable headlight system that prevents glare from hitting oncoming drivers, improving visibility in snowy or rainy conditions. The system can adjust the light beam to highlight traffic lanes and even project directional signals.

NASA adds up heavy rainfall from Hurricane Norbert

The TRMM satellite calculated heavy rainfall generated by Hurricane Norbert and Tropical Storm Dolly. Rainfall totals were greater than 300 mm, affecting the open waters of the Pacific Ocean and near Mexico's western and Gulf coasts.

NASA sees Dolly's remnants bringing showers to the Rio Grande Valley

NASA's Aqua satellite captured remnants of Tropical Depression Dolly over northeastern Mexico on Sept. 3, showing a band of thunderstorms spiraling over the Texas/Mexico border. The TRMM satellite detected moderate to heavy rainfall in southern Texas due to low-to-mid-level moisture from Dolly's remnants.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

NASA sees Tropical Storm Norbert affecting Mexico's west coast

Tropical Storm Norbert is expected to bring heavy rainfall and strong winds to Mexico's west coast, with tropical storm conditions forecast for La Paz to Santa Fe by Thursday night. The storm is currently located near the southern tip of Baja California and is moving northwestward at 8 mph.

NASA's TRMM analyzes Hurricane Cristobal

TRMM analyzed Cristobal's movement northward along the US East Coast before it began to recurve away from the coast due to an approaching shortwave trough. The storm's sustained winds were reported at 70 knots (80.5 mph) with a partial eyewall observed in infrared imagery.

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.

NASA's TRMM satellite sees powerful towering storms in Cristobal

Heavy rainfall and intense convective storms were detected by NASA's TRMM satellite in Hurricane Cristobal, with some storms reaching heights of over 9.3 miles and generating heavy rain. The storm is expected to become a powerful extra-tropical cyclone over the North Atlantic by Friday.

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.

NASA sees huge Hurricane Marie slam Socorro Island

Hurricane Marie has extended hundreds of miles from its eye, causing heavy rainfall and hurricane-force winds on nearby Socorro Island. The storm is also generating dangerous surf along the western coast of mainland Mexico.