NASA Earth
@NASAEarth

NASA’s favorite (habitable) planet. 🌎💚 Studying Earth from ground to orbit.

 Earth
science.nasa.gov/earth/
Joined March 2009
12,226 Photos and videos
The brown bears in @KatmaiNPS are some of the chonkiest on Earth but, even so, @NASA satellites still can’t see them from space. But we can see their home! Satellite images can help determine how healthy the bears’ environment is, which provides clues to how big they may get. 🐻
Satellite image of Katmai National Park and Preserve in Alaska on September 23, 2014. The landscape is mostly green and brown. The area is mountainous and there is a long mountain range along the right side of the image that is capped with white snow. One of these is Mount Katmai. The jagged shoreline and blue ocean water can be seen in the lower right corner. Credit: NASA

ALT Satellite image of Katmai National Park and Preserve in Alaska on September 23, 2014. The landscape is mostly green and brown. The area is mountainous and there is a long mountain range along the right side of the image that is capped with white snow. One of these is Mount Katmai. The jagged shoreline and blue ocean water can be seen in the lower right corner. Credit: NASA

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Meet the chonks competing in this year’s @NatlParkService #FatBearWeek and vote to crown the fattest bear of them all: nps.gov/katm/learn/nature/be…

Bears of Katmai - Katmai National Park & Preserve (U.S. National Park Service)

Bears of Katmai

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For the first time in nearly five centuries, Krasheninnikov erupted. 🌋 The @NASA/@ISRO NISAR satellite captured lava filling its caldera and overflowing into a wider crater, showing how NISAR can repeatedly monitor volcanoes and other natural hazards in sharp detail.
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Learn more: nasa.gov/missions/nisar/us-i…

US-India Satellite Captures Time-lapse Video of Volcanic Eruption - NASA

Like tendrils on a vine, lava spreads out from the northern crater of Krasheninnikov, a volcano pair on the Pacific coast of Russia’s Kamchatka Peninsula. On

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Arctic sea ice reached its yearly minimum extent on Sept. 12, 2026, @NASA and @NSIDC report. The ice covered 1.78 million square miles, making it the 10th-lowest in the satellite record, tied with 2008, 2010, and 2025. go.nasa.gov/4howoJi
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A tiny amoeba broke complex life’s heat record and could broaden the search for habitable worlds. 🔥 NASA-supported researchers found the first known eukaryote able to reproduce at 145°F (63°C), hotter than scientists thought complex cells could withstand. go.nasa.gov/4hg7prz
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NASA Earth retweeted
NASA
@NASA
Sep 22
Sept. 22 marks the fall equinox. That means day and night are nearly equal in length around the world, and in the Northern Hemisphere, fall begins. In the Southern Hemisphere, spring begins on this day.
A satellite's-eye view from October 2022 of the Adirondack Mountains of northeast New York during fall. The leaves on trees are a fiery orange and red. Some trees remain green. White fluffy clouds are visible at the edges of the image.

ALT A satellite's-eye view from October 2022 of the Adirondack Mountains of northeast New York during fall. The leaves on trees are a fiery orange and red. Some trees remain green. White fluffy clouds are visible at the edges of the image.

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The melting season for Arctic sea ice is about 40 days longer than in 1979. Much of that change happened prior to 2010, when the season length stabilized. The findings come from a @NASA-led study of satellite observations of Arctic sea ice from 1979-2023. go.nasa.gov/4yKFreB
Map of the Arctic with colors indicating how the sea ice melting season has changed from 2000 to 2009. Red indicates areas where the season grew longer. Blue indicates where it grew shorter. The map is mostly dark red, indicating an increase of about 5 days or more. Closer to the pole, the melting season has changed less dramatically. Credit: NASA

ALT Map of the Arctic with colors indicating how the sea ice melting season has changed from 2000 to 2009. Red indicates areas where the season grew longer. Blue indicates where it grew shorter. The map is mostly dark red, indicating an increase of about 5 days or more. Closer to the pole, the melting season has changed less dramatically. Credit: NASA

Map of the Arctic with colors indicating how the sea ice melting season has changed from 2010 to 2023. Red indicates areas where the season grew longer. Blue indicates where it grew shorter. The map shows a mix of lighter red and blue, indicating smaller changes of only a few days. Credit: NASA

ALT Map of the Arctic with colors indicating how the sea ice melting season has changed from 2010 to 2023. Red indicates areas where the season grew longer. Blue indicates where it grew shorter. The map shows a mix of lighter red and blue, indicating smaller changes of only a few days. Credit: NASA

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The research does not suggest that shifts in Earth’s climate have stopped affecting the Arctic. The region is still warming nearly 4x faster than the global average. Instead, it suggests that the melt season for Arctic sea ice may depend more on weather patterns than it used to.
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NASA Earth retweeted
NASA Goddard
@NASAGoddard
Sep 18
Tomorrow is International Observe the Moon Night. 🌙 It's easy to get involved: observe the Moon with binoculars, a telescope, or even just look up! Share what you see with us! For more ways to get involved: go.nasa.gov/4yDF31t

International Observe the Moon Night - NASA Science

You're invited! Each International Observe the Moon Night, people around the world celebrate lunar observation, science, exploration, arts, and culture.

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The second-largest reservoir in the U.S. has dropped to record-low water levels. These satellite images show Colorado’s Lake Powell in 2017, when water levels were high, and now in 2026, when snow drought and unusually warm temperatures have driven water levels to record lows.

ALT Animation that alternates between two images of Lake Powell in Colorado. The first shows it in 2017, when water levels were high. The Lake is large and swollen with dark blue water. The second shows the lake in 2026, when water levels were at record lows. The lake appears much smaller and thinner. Credit: NASA

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Learn more about Lake Powell and how NASA data helps decision-makers manage water resources: science.nasa.gov/earth/earth…

Lake Powell Drops to Record-Low Levels - NASA Science

Snow drought and unusually warm temperatures in the Colorado Basin in 2026 helped drive down reservoir water storage in the U.S. West.

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It’s the last week of summer in the Northern Hemisphere, but the season is going out with record-breaking heat. 🥵 A heat dome sent temperatures soaring in the south-central U.S. on Sept. 15, 2026. This map shows air temperatures from satellites and @NASAGoddard’s GEOS model.
Map of air temperatures in the contiguous United States during a heat dome on September 15, 2026. White and light blue colors indicate cooler temperatures below 20 degrees Celsius. Oranges and reds indicate warmer temperatures around 25 to 45 degrees Celsius. The darkest reds indicate temperatures at or above 45 degrees Celsius. Much of the south, central, and eastern U.S. are some shade of orange or red. Darker reds cover Texas and several states to the east and northeast. Credit: NASA

ALT Map of air temperatures in the contiguous United States during a heat dome on September 15, 2026. White and light blue colors indicate cooler temperatures below 20 degrees Celsius. Oranges and reds indicate warmer temperatures around 25 to 45 degrees Celsius. The darkest reds indicate temperatures at or above 45 degrees Celsius. Much of the south, central, and eastern U.S. are some shade of orange or red. Darker reds cover Texas and several states to the east and northeast. Credit: NASA

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Learn more about this event: science.nasa.gov/earth/earth…

Summer Goes Out With a Heat Dome - NASA Science

Temperature records toppled across the central and southern U.S. as the autumnal equinox approached.

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If Earth were a hard marble, its center of mass would stay in the middle – but in reality, the center shifts as seasons move water, ice, and air around the planet. NASA scientists developed a new way to track these motions more precisely, helping improve mapping and navigation.
A 3D digital illustration of Earth with a slice cut away to reveal its internal layers. The exterior shows a realistic view of the globe, focusing on Europe, Asia, and Africa with visible geographic features and grid lines. Credit: NASA’s Scientific Visualization Studio

ALT A 3D digital illustration of Earth with a slice cut away to reveal its internal layers. The exterior shows a realistic view of the globe, focusing on Europe, Asia, and Africa with visible geographic features and grid lines. Credit: NASA’s Scientific Visualization Studio

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Learn more: go.nasa.gov/3UUyI3q

NASA Watches Earth’s Weight, Finds Center of Mass - NASA

Seasonal changes redistribute enough water around Earth to shift the planet’s center of mass back and forth by fractions of an inch relative to its geometric

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Fall vibes come early in the far north 🍂 The low-growing shrubs in this area reach peak red, orange, and yellow in mid-September, finds a @NASA and @SDState analysis of satellite data. But blink and you might miss it! Peak color can last a week or less in the far north.
Satellite image of Nunavut, Canada on September 6, 2026. Much of the image is pale orange and yellow as the leaves change to fall colors. The Coppermine River winds across the left and bottom sides of the image. Blue and green lakes and ponds dot the landscape. Credit: NASA

ALT Satellite image of Nunavut, Canada on September 6, 2026. Much of the image is pale orange and yellow as the leaves change to fall colors. The Coppermine River winds across the left and bottom sides of the image. Blue and green lakes and ponds dot the landscape. Credit: NASA

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Get the science behind fall in the far north: science.nasa.gov/earth/earth…

An Early Look at Fall Color in Canada - NASA Science

Reds, yellows, and oranges are already sweeping across tundra landscapes in Nunavut.

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NASA Earth retweeted
Learn With NASA
@LearnWithNASA
Sep 14
⏰ Today is the day! The deadline to apply for a NASA Spring 2027 internship is tonight, Sept. 14, at 11:59pm ET. Get your application in before time runs out: intern.nasa.gov
A group of interns is gathered around a large red sculpture of the NASA worm logo outside of NASA Headquarters in Washington, DC.

ALT A group of interns is gathered around a large red sculpture of the NASA worm logo outside of NASA Headquarters in Washington, DC.

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The ocean has a hidden garden of phytoplankton. You just need to know how to see it, and NASA’s PACE mission has the tools! 🌊🛰️ With PACE, scientists can identify types of phytoplankton in the water, which each play a different role in ocean ecosystems.
True color satellite image showing a phytoplankton bloom off the U.S. East Coast in May 2024. The bloom looks like a milky, bright blue swirl just off the coast. Credit: NASA

ALT True color satellite image showing a phytoplankton bloom off the U.S. East Coast in May 2024. The bloom looks like a milky, bright blue swirl just off the coast. Credit: NASA

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