European Space Agency Flickr Update

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Malta from space via laser
13-06-2017 02:05 PM CEST

europeanspaceagency posted a photo:

Malta from space via laser

This image of Malta, captured by the Copernicus Sentinel-2B satellite is one of the first set of images delivered via Alphasat, which is in geostationary orbit 36 000 km above Earth. The image is a result of the two satellites using their optical communication instruments to transfer data via laser for fast delivery. This is essential for applications such as helping respond to disasters.

Read the article here.

Credit: contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY-SA 3.0 IGO

Naples relayed via laser
13-06-2017 02:03 PM CEST

europeanspaceagency posted a photo:

Naples relayed via laser

This image of the Bay of Naples, Italy, captured by the Copernicus Sentinel-2B is one of the first set of images delivered via Alphasat, which is in geostationary orbit 36 000 km above Earth. The image is a result of the two satellites using their optical communication instruments to transfer data via laser for fast delivery. This is essential for applications such as helping respond to disasters.

Read the article here.

Credit: contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY-SA 3.0 IGO

Landslide on the radar
13-06-2017 01:57 PM CEST

europeanspaceagency posted a photo:

Landslide on the radar

On 20 May, over a million tonnes of dirt and rock buried part of California’s Highway 1 along the Pacific coastline in the state’s Big Sur region. In addition to cutting off the route, the landslide added some 5 hectares of land to the shoreline.

Sentinel-1’s radar shows that the ground that slid down the mountain was moving in the two years before the landslide.

The radar data were processed using Small Baseline Subset interferometry (SBAS), a technique that can detect and monitor movements over wide areas with high sensitivity. In this image, red dots represent points where the ground was moving away from the satellite at a rate of more than 70 mm per year. Green dots show stable ground in the surrounding area.

Credit: contains modified Copernicus Sentinel data (2015–17), processed by Norut

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