This rainbow-like atmospheric phenomenon depends on a very specific set of circumstances. It is common on Earth and incredibly rare beyond it.
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Earthquakes Can Trigger Megathrust Slip in Cascadia
A 2022 earthquake in Northern California may have triggered slow slip in the Cascadia Subduction Zone, according to a new study.
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Tatooine, Trisolaris, Thessia: Sci-Fi Exoplanets Reflect Real-Life Discoveries
After astronomers discovered exoplanets wildly different from Earth, exoplanets in science fiction became less Earth-like, too.
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The Crocodile Dundee Site Helping Rewrite the History of Australian Bushfires
A lake made famous by Hollywood has yielded powerful new evidence that humans have conducted controlled burns on the Red Continent for tens of thousands of years.
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Fiber-Optic Networks Could Reveal the Moon’s Inner Structure
Distributed acoustic sensing offers a cost-effective alternative to traditional seismic arrays, and building such a network on the Moon might be possible.
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Quase um Ano depois, a Seca na Amazônia Está Longe de Terminar
Fortalecido pelas mudanças climáticas, o período de seca no norte do Brasil poderá durar mais que o originalmente previsto e ter consequências econômicas e ecológicas prolongadas.
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New Seafloor Map Only 25% Done, with 6 Years to Go
Beneath the waves, the vast majority of the ocean is unknown. Seabed 2030 is using cutting-edge technologies to fill in the bathymetric blanks and fully map the seafloor.
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Air Pollution Has Masked Climate Change’s Influence on U.S. Rainfall
A study suggests that high levels of aerosol pollution have offset higher precipitation levels caused by a warming climate.
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Drilling into Antarctica’s Past
The West Antarctic Ice Sheet melted rapidly around 8,000 years ago. Could that event foretell the future?
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American Samoa’s Sinking Land Speeds Up Sea Level Rise
A new interactive tool is helping residents understand how their lands and homes are at risk.