Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20. Suomi NPP data announcement

ASF DAAC News

Read the latest news stories, feature articles, user stories, and blog posts that feature data archived by NASA's Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).

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SAR land data image with globe pattern overlay

From ERS-1 to NISAR: 35 Years of SAR at ASF

August 2026 marks 35 years since the first downlink of synthetic aperture radar data to the Alaska SAR Facility. ASF has supported many missions and archived many Earth observations since then.

Blog

Aug. 17, 2026

an illustration of the paths four tornados took across Tennessee. The tornadoes travelled on roughly the same latitude, forming a broken east to west line across the state.

Tracing a Tornado’s Path of Destruction

A study led by NASA researchers demonstrated how SAR satellite data can be used to identify tornado tracks and supplement storm damage surveys.

News

Aug. 7, 2026

This false-color composite derived from NISAR data highlights vegetated areas (green), unvegetated surfaces (red), and how rapidly the vegetated areas changed (blue) during the 2025-2026 growing season in an agricultural region of South Africa.

NISAR L-Band Data Released, Expanding Record of Surface Changes

Produced by NASA JPL for the NISAR mission, these data products give researchers a new way to observe changes across Earth’s surface.

News

July 21, 2026

False-color corrected reflectance image overlaid with flood information for Lake Bangweulu and the surrounding wetlands on 27 April 2026 from the MODIS instrument aboard the Terra satellite

A Different View of Lake Bangweulu and Wetlands, Zambia

The MODIS instrument aboard the Terra platform captured this image on April 27, 2026.

Worldview Image of the Week

May 1, 2026

30-, 60- and 90-day forecasts of dry and wet conditions, relative to the historic record for the lower 48 states, use GRACE-FO satellite groundwater data for the initial conditions.

Below the Surface: Tracking Groundwater from Space

This training offered by NASA's Applied Remote Sensing Training (ARSET) program covers applicable data sources for assessing groundwater change.

News

March 9, 2026

NISAR Mission Team releases over 100K new data products

The second data release since launch includes Level-1 to Level-3 L-band data products from locations around the world.

News

Feb. 27, 2026

OPERA Radiometric Terrain Corrected Synthetic Aperture Radar Backscatter image of Singapore on 17 February 2026 from ESA's Sentinel-1C satellite

Singapore's Shipping Strait

Image captured on February 17, 2026, by the C-Band SAR instrument aboard ESA's Sentinel-1C platform.

Worldview Image of the Week

Feb. 27, 2026

ROSES Issues Call for NISAR Earth Observations Research Proposals

NASA is looking to fund studies using the agency's new NISAR synthetic aperture radar satellite for Earth science research and its applications.

News

Feb. 17, 2026

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ASF DAAC News

From ERS-1 to NISAR: 35 Years of SAR at ASF

Tracing a Tornado’s Path of Destruction

NISAR L-Band Data Released, Expanding Record of Surface Changes

A Different View of Lake Bangweulu and Wetlands, Zambia

Below the Surface: Tracking Groundwater from Space

NISAR Mission Team releases over 100K new data products

Singapore's Shipping Strait

ROSES Issues Call for NISAR Earth Observations Research Proposals

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