NASA Earth

@NASAArmstrong @NASA @isro More: go.nasa.gov/4nmbv41

This NASA aircraft is making California’s earthquake models more accurate ✈️ Using a scientific instrument, the @NASAArmstrong C-20A is studying surface motion near fault lines and land subsidence. The data will also validate measurements from the @nasa @isro NISAR satellite.

A new milestone for @NOAA’s upcoming #JPSS4 satellite has been reached with the successful integration of Libera, a @NASA-funded instrument built by @LASPatCU! Libera will help measure reflected solar energy and heat emitted by Earth. Learn more: nesdis.noaa.gov/our-satellites…

@HastingSpe35565 Monthly lunar observations are only one part of the Landsat calibration process! To maintain precise calibration between lunar observations, Landsat sensors rely on a suite of onboard calibrators used daily or weekly to track how the instruments respond to light.

@NASAEarth But if Landsat only checks the Moon monthly, how accurate are those calibrations in between? Seems like that gap could introduce drift.

NASA’s Artemis program has its eyes on the Moon—but so does Landsat! 🌕 Once a month, the Landsat satellites turn to look at the Moon instead of Earth. Observing the Moon helps calibrate the satellites’ instruments, allowing Landsat to consistently and reliably study our planet.

For the first time, a geospatial AI foundation model is now being used in space! The Prithvi model, which was sent to a @space_station payload and a South Australian satellite, could improve Earth observations of floods, wildfires, and more. Learn more: go.nasa.gov/4u38N6f

Read the full story: go.nasa.gov/3PqKjEO

A mosaic made of Earth 🌎 In Taiwan, the average size of a farm is much smaller than in the U.S. or U.K. When seen from space, the small rectangular plots look like a mosaic of green and blue stained glass.

Recent missions like NISAR and SWOT, developed by NASA and its partners, can help scientists better understand rapid changes in glaciers. Learn more: go.nasa.gov/4u2Tc6A

Antarctica’s Hektoria Glacier retreated at a record-setting pace. Between Jan. 2022 and March 2023, the glacier lost about 15 miles (25 km) in length, including a 2-month period when grounded ice retreated more than 5 miles (8 km) – the highest rate observed in modern history.

NASA is launching a new experiment to track charged particles in a "space doughnut" encircling Earth. 🍩 Installed on the @Space_Station, STORIE will study the ring current — a swarm of particles that can surge when a solar blast hits Earth, disrupting satellites & power grids.

@NASA Full story: go.nasa.gov/3QFb3lr

NASA-supported science is helping protect golden eagles on the move. The work combines GPS tracking data and satellite observations from @NASA and others to track where eagles migrate, where they spend the winter, and what hazards they encounter on the way.

@risebnbx @NASA @NOAA This is @NASA_Johnson's WB-57, which is a high-altitude aircraft. For this mission, the plane was carrying a scientific instrument from @NOAA. You can learn more about the WB-57 here: airbornescience.nasa.gov/aircraft/WB-57…

@NASAEarth @NASA @NOAA Wow, this is actually fascinating, two things stood out to me. That plane doesn’t look like a normal one… are aircraft like that specifically designed for NASA research? And where can someone go to learn more about all this?

Small but mighty 💪 Using scientific instruments on a high-altitude plane, @NASA and @NOAA scientists are studying the role that tiny particles — 6 millionths of an inch across or smaller — play in the chemistry of Earth’s atmosphere.

@NASA @NOAA Full story: science.nasa.gov/blogs/science-…

@NASA @NOAA These particles make up most of the aerosols in the lower stratosphere (starting around 7.5 miles above Earth) by surface area. They come from carbon-based emissions from plants and the ocean or from sulfuric particles that form due to meteors entering Earth’s atmosphere.

@_matfontaine_ @NASA @USGS That's correct! The "o" in "world" is a Landsat image of the Manicouagan Reservoir in Canada.

@NASAEarth @NASA @USGS The "O" is easily recognizable. It's the Manicouagan crater in Québec province, Canada.

It’s like writing a message in the sand but way, way bigger. These images from the @nasa @usgs Landsat satellites show features on Earth that resemble letters. What will you spell with Earth at your fingertips? go.nasa.gov/4emP38x

@risebnbx NISAR measures changes in Earth's land and ice down to fractions of an inch.

@NASAEarth Is it accurate ?

NISAR sees subtle changes in Earth’s land and ice surfaces. But how does it work? The SAR in NISAR stands for synthetic aperture radar, and it helps scientists “see” through clouds to track changes in cities, forests, and ice.