3 days ago · Earth's atmosphere is a layer of mixed gases approximately 60 miles high that provides the air we breathe, shields us from dangerous levels of ultraviolet light from the sun, and traps enough …

Nov 21, 2025 · Air mass/density is a fundamental property of atmosphere. Mixture of gases forming Earth's atmosphere, consisting of nitrogen (∼78%), oxygen (∼21%), water vapor, and other trace …

2 days ago · NASA’s Earth-observing satellites help scientists identify atmospheric rivers, which enables studies of climate change, water management, and weather.

Dec 5, 2025 · Humidity is a measure of water vapor in the atmosphere. There are measures of absolute humidity, which is the grams of water vapor present per cubic meter of air. Specific humidity is the …

NASA's Level-1 and Atmosphere Archive and Distribution System Distributed Active Archive Center primarily provides access to global science data products from MODIS and VIIRS.

NASA collects data on the Sun and its energy to understand how our closest star impacts Earth's energy fields, atmosphere, weather, and human activity.

2 days ago · NASA's air quality data allow users to measure pollutants in the atmosphere and track their health and socioeconomic impact on people.

Jun 27, 2024 · An in-depth look at the development, attributes, and benefits of the Prithvi-weather-climate foundation model.

Dec 5, 2025 · Aerosol optical depth (AOD) is an assessment of the amount of visible and infrared light aerosols scatter or absorb in a column of the atmosphere, and is sometimes referred to as aerosol …

Dec 5, 2025 · NASA's Earth satellites collect data about sulfur dioxide and other atmospheric trace gases to study their impact on health, air quality, and weather.