The radar signal’s ability to penetrate snow and ice reveals subsurface structures and fracture patterns that are invisible to optical cameras, providing scientists with a new window into how Antarctic glaciers respond to topographic obstacles. Photo Source: NASA/JPL-Caltech

NISAR Satellite Spots a ‘Hummingbird’ in Antarctica

A mountain poking through Antarctic ice doesn’t normally make headlines. But when a $1.5 billion radar satellite looked down at a remote corner of East Antarctica and sent back an image shaped unmistakably like a hummingbird in flight, scientists took a second look — not just at the shape, but at what it tells them about how ice moves. The image was produced using data from NISAR (NASA-ISRO Synthetic Aperture Radar), a

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