Defense Meteorological Satellite Program

Arctic sea ice retreated to near-historic lows in the Northern Hemisphere this summer, likely melting to its minimum extent for the year on Sept.11, 2024,

Sea ice at both the top and bottom of the planet continued its decline in 2024. In the waters around Antarctica, ice coverage shrank to near-historic lows for

Winter sea ice cover in the Arctic was the lowest it's ever been at its annual peak on March 22, 2025, according to NASA and the National Snow and Ice Data Center (NSIDC) at the University of Colorado, Boulder. At 5.53 million square miles (14.33 million square kilometers), the maximum extent fell below the prior low of 5.56 million square miles (14.41 million square kilometers) in 2017.

On October 19-20, 2024, the satellite breakup of Intelsat 33e added at least 20 pieces of space junk to the growing debris pile in orbit around Earth. The post Boeing satellite breakup adds to space junk around Earth first appeared on EarthSky.

Sea ice at both the top and bottom of the planet continued its decline in 2024. In the waters around Antarctica, ice coverage shrank to near-historic lows for the third year in a row. The recurring loss hints at a long-term shift in conditions in the Southern Ocean, likely resulting from global climate change, according to scientists at NASA and the National Snow and Ice Data Center. Meanwhile, the 46-year trend of…

The South Atlantic Anomaly makes a section of the southern aurora weaker and likely dimmer.

Northrop Grumman wins $45 million Space Force contract to launch small weather satellite

The Sahel-Sudano-Guinean region has been experiencing significant land use and land cover change in the last decades due to climatic and anthropic impacts. A better understanding of these changes is essential for sustainable land and water management in the region.

Near Earth's poles, observers of the night sky often behold aurorae, colorful light shows in the upper atmosphere caused by interactions between the solar wind and our planet's magnetosphere. A little closer to the equator, a different upper atmosphere phenomenon sometimes occurs: subauroral ion drifts (SAID).

Creators have high hopes it can help scientists understand Earth's past.