Icebergs - NASA Earthdata
Sep 30, 2025 · NASA's iceberg data includes current and historical measurements useful for mapping icebergs, glaciers that calve them, and their characteristics.
Glacier Power: What is Glacial Calving? - NASA Earthdata
Sep 30, 2025 · When a piece of a glacier breaks off, it's called calving, and results in an iceberg.
Iceberg A23a in the Southern Ocean, Antarctica - Earthdata
Feb 27, 2024 · Iceberg A23a calved from the Filchner–Ronne Ice Shelf (on the northwestern side of Antarctica) in 1986 and had been stuck in the Weddell Sea off the coast of West Antarctica …
Iceberg A23A Grounded Near South Georgia Island - Earthdata
Mar 4, 2025 · Iceberg A23A was captured in this false-color corrected reflectance (Bands 7-2-1) image from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua …
Iceberg A23A Moving Toward South Georgia Island, Antarctica
Jan 14, 2025 · NASA's true-color corrected reflectance image of a very large iceberg A23A moving toward South Georgia Island in Antarctica was captured by the MODIS instrument …
Glacier Power: Why is Glacier Ice Blue? - NASA Earthdata
Sep 30, 2025 · Glacial ice is a different color from regular ice. It is so blue because the dense ice of the glacier absorbs every other color of the spectrum except blue — so blue is what we see!
Glacier Power: How do Glaciers Form? - NASA Earthdata
Sep 30, 2025 · From Snowflakes to Rivers of Ice Glaciers are massive and incredibly powerful, but they begin with small snowflakes. Imagine how many snowflakes make a glacier as snow …
Antarctic Iceberg A23A Continues to Crumble - NASA Earthdata
NASA's true-color corrected reflectance image of Iceberg A23A and iceberg A23F was captured on August 17, 2025, from the MODIS instrument aboard the Aqua satellite.
Swirling Iceberg A76A in the Drake Passage - NASA Earthdata
May 9, 2025 · Animation starting November 20 and ending December 4, 2022, of Iceberg A76A swirling in the Drake Passage. A76A was part of the A76 iceberg that calved from the Ronne …
Glacier Power: Teacher's Guide for Segment Review Questions
Sep 30, 2025 · Find answers to segment review questions included in Glacier Power chapters.