Studies since 2018 have provided competing explanations of bright radar reflections from the base of the south polar ice cap.
history
Posted inNews
African World Heritage Sites Jeopardized by Rising Seas
Worsening flooding and erosion threaten places of “outstanding universal value” along the continent’s coastlines.
Posted inENGAGE, Features
A New Mayflower, Named for the Past, Autonomously Navigates the Future
To commemorate the 400th anniversary of the Pilgrims’ crossing, a ship guided by an AI captain will embark on the same journey, doing science along the way.
Posted inNews
Did Volcanoes Accelerate the Fall of Chinese Dynasties?
After analyzing ice cores and historical documents, researchers found a link between eruptions and political change in China over the past 2 millennia.
Posted inNews
Sediments Suggest Vikings May Have Been the First to Settle the Azores
A multidisciplinary team studying lake sediments and climate change found evidence that the archipelago was inhabited 700 years earlier than historical sources claim.
Posted inNews
Ancient Eruptions Reveal Earliest Settlers on the Faroe Islands
Lake sediment is helping scientists resolve a decades-long historical mystery.
Posted inENGAGE, News
Roman-Era Millstone and Mixer Makers Knew Their Rocks
The geochemistry of basalt millstones and mixers from the city of Volubilis suggests a local origin—and that rocks were picked for specific purposes, from crushing olives to mixing dough.
Posted inENGAGE, News
Māori Arrival in New Zealand Revealed in Antarctic Ice Cores
A new study shows smoke from fires set by the first inhabitants of Aotearoa from around 1300 left a mark in the ice 6,000 kilometers away, on an island off the Antarctic Peninsula.
Posted inENGAGE, News
State-of-the-Art Technology, Serendipity, and Secrets of Stonehenge
The first comprehensive analysis of what the sarsen stones are made of came about with new technology—and good old-fashioned luck.
Posted inENGAGE, Science Updates
Recognizing Geology’s Colonial History for Better Policy Today
The Minnesota Geological Survey has contributed to the dispossession of homelands from Indigenous Peoples. The agency is creating more just policies.