Tag

Reflectivity

All articles tagged with #reflectivity

"Unraveling the Mystery of Arctic Warming with US Space Force Satellite Data"

Originally Published 2 years ago — by Space.com

Satellite data from the U.S. Space Force reveals that the reduction of sunlight reflectivity, or albedo, has amplified warming in the Arctic, with a 20% to 35% loss in total reflectivity observed from 2014 to 2019. This unprecedented rise in local temperatures is linked to the reduction in sea ice and the increased absorption of sunlight by the exposed dark ocean, as well as the formation of ponding water on the remaining sea ice. The findings, published in Nature Scientific Reports, provide a comprehensive multi-year examination of the relationship between albedo and Arctic warming, shedding light on the accelerating climate changes in the region.

science science-and-environment arctic-warming climate-change reflectivity sandia-national-laboratories satellite-data science-and-environment

"Cheops Unveils Shiniest Exoplanet: A Mirror-Like Giant in Space"

Originally Published 2 years ago — by SciTechDaily

ESA's Cheops mission has discovered an ultra-hot exoplanet, LTT9779 b, with an albedo of 80%, making it the shiniest exoplanet ever found. The planet's high reflectivity is due to its metallic cloud cover composed of silicate and metals like titanium. LTT9779 b is an ultra-hot Neptune, unique in its size and close orbit to its star, prompting further studies to understand its atmosphere and survivability. The discovery was made through detailed measurements by Cheops, which revealed the planet's high reflectivity and the presence of reflective clouds of metal.

science space cheops-mission exoplanet metallic-clouds reflectivity space ultra-hot-neptune