Sensor array traces how rocks conduct electricity, revealing mineral riches, crust that can amplify solar storms, and fragments of ancient landmasses.
Sensor array traces how rocks conduct electricity, revealing mineral riches, crust that can amplify solar storms, and fragments of ancient landmasses.
Timmy, a humpback stranded in Germany 6 weeks ago, was freed after a media outcry. But the whale was in poor health and may already be dead.
In the remote reaches of the Amazon, scientists are working with villages to protect an ecosystem while boosting the economy.
Early in the morning of 10 August 2025, a >64 × 106 m3 landslide struck Tracy Arm fjord in Alaska. The landslide was preconditioned by glacial retreat caused by climate change. The resulting 481 m runup megatsunami followed an initial 100-m-high breaking wave traveling >70 m s-1. The landslide was preceded by several days of microseismicity, which increased in rate and magnitude until ~1 hour before failure. The landslide produced globally observed long-period seismic waves equivalent in size to a M5.4 earthquake. A long-period (~66 s) global seismic signal, produced by a landslide-induced seiche trapped within the fjord, persisted for up to 36 hours, the second time a days-long seiche has been thus observed. With fjord regions increasingly visited by cruise ships, and climate change making similar events more likely, this unanticipated, near-miss event highlights the growing risk from landslides and tsunamis in coastal environments.
Dismissal of the National Science Board is widely seen as latest move to erase NSF's independence.
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