Spalte Splits
Image of the Day Oct 1, 2020

Spalte Splits

In summer 2020, a huge piece of ice split off from the Arctic’s largest remaining ice shelf.
Superior Fall Colors
Image

Superior Fall Colors

In autumn, the leaves on deciduous trees change colors as they lose chlorophyll, the molecule that plants use to synthesize food.

Published Sep 29, 2020

Image of the Day Atmosphere Land Unique Imagery

September Puzzler
Earth Matters

September Puzzler

Your challenge is to use the comments section to tell us what we are looking at, where it is, and why it is interesting.

Published Sep 29, 2020 in Earth Matters

Mapping Shallow Seafloors
Image

Mapping Shallow Seafloors

By combining satellite measurements with ship-based sonar data, researchers are working to fill the gaps in coastal ocean maps.

Published Sep 28, 2020

Image of the Day Land Water Remote Sensing

Iraq Lakes Bounce Back
Image

Iraq Lakes Bounce Back

After decades of low water levels, two of Iraq’s popular lakes appear to be filling again.

Published Sep 25, 2020

Image of the Day Water

The Gambia
Image

The Gambia

The smallest country in mainland Africa hugs its namesake river.

Published Sep 25, 2020

Image of the Day Land Water

Extreme Monsoon Rains in Pakistan
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Extreme Monsoon Rains in Pakistan

The 2020 rainy season has caused fatal flooding and crop loss across Pakistan.

Published Sep 24, 2020

Image of the Day Water Floods Severe Storms Remote Sensing

Cracking Icy Secrets of New Penguin Colonies
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Cracking Icy Secrets of New Penguin Colonies

Populations of gentoo penguins are growing, and remote sensing data are helping scientists figure out why.

Published Sep 23, 2020

Image of the Day Life Water Snow and Ice Remote Sensing

Bobcat Fire Scorches Southern California
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Bobcat Fire Scorches Southern California

The fire is among the largest Los Angeles County has ever faced.

Published Sep 23, 2020

Image of the Day Land Fires Human Presence Remote Sensing

Polarstern at the North Pole
Notes from the Field

Polarstern at the North Pole

The icebreaker made quick progress north owing to warm conditions and thin, fragmented sea ice.

Published Sep 23, 2020 in Notes From the Field

Earth at Night
Article

Earth at Night

Satellite images of Earth at night have been a curiosity for the public and a tool of fundamental research for at least 25 years. They have provided a broad, beautiful picture, showing how humans have shaped the planet and lit up the darkness.

Published Apr 12, 2017

Atmosphere Land Human Presence Remote Sensing

Arctic Sea Ice Reaches Second-Lowest Extent
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Arctic Sea Ice Reaches Second-Lowest Extent

The Arctic sea ice extent continues its long-term downward trend.

Published Sep 22, 2020

Image of the Day Heat Land Water Snow and Ice Remote Sensing

Persistent Phytoplankton
Image

Persistent Phytoplankton

The waters off of Newfoundland were colored by coccolithophore blooms for two months.

Published Sep 21, 2020

Image of the Day Life Water Remote Sensing Water Color

The Chesapeake Bay Watershed: Still Cloudy, With a Chance of Clearing
Article

The Chesapeake Bay Watershed: Still Cloudy, With a Chance of Clearing

It is the largest estuary in the United States and third largest in the world. Once sculpted and changed by ice, water, and powerful geologic forces over tens of millions of years, today's Bay is shaped by human forces as well.

Published Dec 1, 2016

Land Water Human Presence Remote Sensing

Aerosol Optical Depth
Global Maps Mar 2000 — Jul 2020

Aerosol Optical Depth

Airborne aerosols can cause or prevent cloud formation and harm human health. These maps depict aerosol concentrations in the air based on how the tiny particles reflect or absorb visible and infrared light.

Atmosphere

Cupola Over the Caribbean
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Cupola Over the Caribbean

Clouds trace the islands and color variations trace the seafloor.

Published Sep 18, 2020

Image of the Day Atmosphere Land

A Meeting of Smoke and Storms
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A Meeting of Smoke and Storms

Satellites tracked smoke from wildfires as it spanned the continental United States and followed winds around two hurricanes.

Published Sep 17, 2020

Image of the Day Atmosphere Heat Land Water Fires Remote Sensing

Record Flooding in Sudan
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Record Flooding in Sudan

A wetter-than-usual rainy season in Sudan has devastated communities across the country.

Published Sep 17, 2020

Image of the Day Land Floods Human Presence Remote Sensing

Blue Marble Next Generation
Article

Blue Marble Next Generation

12 months of high-resolution global true color satellite imagery.

Published Oct 13, 2005

Atmosphere Land Water Snow and Ice

Welcome back to school!
Earth Matters

Welcome back to school!

School is starting and NASA’s Earth Observatory has resources for children and teachers!

Published Sep 9, 2020 in Earth Matters

Could COVID-19 Have Seasons? Searching for Signals in Earth Data
Article

Could COVID-19 Have Seasons? Searching for Signals in Earth Data

A race is on to figure out whether COVID-19 will wax and wane with the seasons. Atmospheric and hydrologic models produced by NASA and other institutions may be key to that research.

Published Jul 14, 2020

Atmosphere Life Human Presence Remote Sensing

Of Mosquitoes and Models: Tracking Disease by Satellite
Article

Of Mosquitoes and Models: Tracking Disease by Satellite

A few decades ago, the idea of predicting a disease outbreak via satellite was science fiction. But today, researchers can use environmental data to predict when and where some diseases are likely to spread.

Published Jul 9, 2020

Life Human Presence Remote Sensing

Applied Sciences Collection
Article

Applied Sciences Collection

NASA satellites and sensors constantly take the pulse of our planet. Researchers apply those observations on local and regional scales to better manage things like food and water supplies, health, safety, land use, and ecosystems.

Published May 1, 2020

Human Presence Remote Sensing

Carbon Monoxide
Global Maps Mar 2000 — Feb 2017

Carbon Monoxide

When fuels such as coal, wood, and oil burn incompletely, they produce carbon monoxide. The gas is spread by winds and circulation. These maps show monthly averages of CO in the lower atmosphere.

Atmosphere

Net Primary Productivity
Global Maps Feb 2000 — Nov 2016

Net Primary Productivity

These maps show the ‘metabolism” of Earth’s plants and trees. Net primary productivity is the difference between the amount of carbon dioxide absorbed during photosynthesis minus the amount released by respiration.

Land Life

Fire
Global Maps Mar 2000 — Jul 2020

Fire

Whether started by humans (farming, logging, or accidents) or by nature (lightning), fires are always burning somewhere on Earth. These maps show the locations of fires burning around the world each month.

Land

Snow Cover
Global Maps Mar 2000 — Jul 2020

Snow Cover

Snow and ice influence climate by reflecting sunlight back into space. When it melts, snow is a source of water for drinking and vegetation; too much snowmelt can lead to floods. These maps show average snow cover by month.

Snow and Ice

Tournament Earth - Best of EO
Article

Tournament Earth - Best of EO

After five rounds and 56,000 votes, the readers have chosen their favorite. We have a Tournament Earth 2020 champion.

Published Apr 28, 2020

Human Presence Remote Sensing

Choose Your Champion: Tournament Earth 2020
Article

Choose Your Champion: Tournament Earth 2020

Vote for your favorite all-time Earth Observatory image. Help narrow the field from 32 nominees down to one champion in a five-round tournament.

Published Mar 26, 2020

Atmosphere Land Life Water Snow and Ice Remote Sensing Videos

Net Radiation
Global Maps Jul 2006 — Jul 2020

Net Radiation

Net radiation is the balance between incoming and outgoing energy at the top of the atmosphere. It is the total energy available to influence climate after light and heat are reflected, absorbed, or emitted by clouds and land.

Heat