Data acquired September 6, 1986
720 x 480
JPEG

Data acquired September 6, 1986
1050 x 700
414 KB - JPEG

Data acquired September 12, 2023
720 x 480
JPEG

Data acquired September 12, 2023
1050 x 700
409 KB - JPEG

Taking a Bite Out of Pi

A cycle of rapid advance and retreat at Sortebræ, a glacier in eastern Greenland, built pi-shaped tongues of ice before they later retreated.

This image originally appeared in the NASA Earth Observatory story Taking a Bite Out of Pi.

NASA Earth Observatory images by Wanmei Liang, using Landsat data from the U.S. Geological Survey. Story by Adam Voiland.

Published March 14, 2024
Data acquired September 6, 1986 - September 12, 2023