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European Space (unofficial)

Icy first light of shoebox-sized PRETTY CubeSat

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PRETTY is testing 'slant' reflectometry

A shoebox-sized satellite looking far to the horizon picked up a strong signal reflection from hundreds of kilometres below it, beside a lonely polar island in the Canadian Arctic. ESA’s PRETTY CubeSat mission team could not be quite certain of what its instrument first light was showing until cross-checking it against a Sentinel-1 radar map of the same location, to find a precise correlation with a stretch of offshore sea ice.

#engineering #technology #space #science #esa #europeanspaceagency
posted by pod_feeder_v2

Icy first light of shoebox-sized PRETTY CubeSat

A shoebox-sized satellite looking far to the horizon picked up a strong signal reflection from hundreds of kilometres below it, beside a lonely polar island in the Canadian Arctic. ESA’s PRETTY CubeSat mission team could not be quite certain of...

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esa@social.gibberfish.org
European Space (unofficial)

DART impact might have reshaped Hera's target asteroid

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Simulation of DART's impact on Dimorphos

ESA’s Hera spacecraft for planetary defence is being prepared for a journey to the distant asteroid moon Dimorphos orbiting around its parent body Didymos. One of the first features Hera will look for is the crater left on Dimorphos by its predecessor mission DART, which impacted the asteroid to deflect its orbit. Yet a new impact simulation study reported in Nature Astronomy today suggests no crater will be found. The DART impact is likely to have remodelled the entire body instead – a significant finding for both asteroid science and planetary defence.

#engineering #technology #space #science #esa #europeanspaceagency
posted by pod_feeder_v2

DART impact might have reshaped Hera's target asteroid

ESA’s Hera spacecraft for planetary defence is being prepared for a journey to the distant asteroid moon Dimorphos orbiting around its parent body Didymos. One of the first features Hera will look for is the crater left on Dimorphos by its...

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