Description Data from the Earth-orbiting U. S. -India NISAR (NASA-ISRO Synthetic Aperture Radar) satellite’s L-band radar was used to produce an image of Nunatak Zaterjavshijsja — a mountaintop in East Antarctica — poking out amid a stream of ice flowing northeast to the ocean.
Source: [NASA](https://science.nasa.gov/photojournal/nisars-l-band-radar-reveals-hummingbird-in-antarctica/)