Hand axes, hippo bones, and a stack of ancient lake beds show that arid Arabia experienced intervals of humid weather, spurring pulses of human migration over the past 400,000 years.
history
Posted inNews
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 inScience 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.
Posted inFeatures
Rebecca Charbonneau: The Future of Scientific History
Historian finds the liberal arts support a deeper study of science.
Posted inNews
Cosmological Tool Helps Archaeologists Map Earthly Tombs
A new study employs a method originally developed to help map stars and galaxies to describe how ancient tombs are clustered. The research helps archaeologists studying remote or inaccessible sites.
Posted inResearch Spotlights
树木年轮显示了最新发现的极端太阳活动事件记录
对树木年轮物质的光谱分析表明，碳-14浓度在一年内急剧上升，这与发生在公元前5410年左右的极端太阳高能粒子事件相一致。
Posted inResearch Spotlights
Tree Rings Show Record of Newly Identified Extreme Solar Activity Event
Mass spectroscopy of tree ring material indicates a sharp, single-year rise in carbon-14 concentrations consistent with an extreme solar energetic particle event that occurred around 5410 BCE.
Posted inNews
Food Security Lessons from the Vikings
Scandinavian societies of the first millennium adapted their farming practices to volcano-driven climate changes.
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Scientists Mine 16th Century Ship Logs for Geophysical Research
Compass measurements held a key to unlocking the mystery of Earth’s magnetic field and its changes over time. A historian-turned-geoscientist found the measurements in an unlikely place—merchant ship logs.
Posted inEditors' Highlights
Marine Isotope Stage 6: First High-Resolution Field Record
A 200-year resolution record from the Black Sea for marine isotope stage 6 (130-180 ka) shows a stable geomagnetic field.