When the blue dye resazurin encounters living microorganisms, it transforms into fluorescent pink resorufin and helps scientists understand ecosystem respiration, but it has its limitations.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
Posted inResearch Spotlights
Jupiter’s Northern Lights on Display in Otherworldly Movie
The first movie of Jupiter’s infrared aurora gives scientists a new look at the Jovian magnetic field.
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Study of Alaskan Landslide Could Improve Tsunami Modeling
A rare submarine landslide provides researchers with a reference point for modeling the biggest tsunamis.
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Southern Hemisphere Sediments Show Surprising Pliocene Cyclicity
New, high-resolution paleoclimate reconstructions with 100,000-year rhythms may offer insights into how Earth’s climate system operated during a time when the planet was warmer than it is today.
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Bringing Clarity to What Drives Auroras
A new classification scheme helps researchers distinguish what accelerates the electrons that create auroras.
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A New Way of Visualizing Iceland’s Crustal Deformation
A novel method of calculating strain rates from GPS data shows the South Iceland Seismic Zone is experiencing rapid deformation, including inflation near the island’s most active volcano.
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All Types of Large Earthquakes Produce Prompt Gravity Signals
New observations of recently discovered gravity perturbations that precede seismic waves have the potential to improve earthquake early-warning systems in California and other tectonic settings.
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Late Cretaceous Extreme Warmth at High Southern Latitudes
New proxy data indicate sea surface temperatures at high southern latitudes reached over 35°C during a period of extreme greenhouse climate that began about 100 million years ago.
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Antarctica’s Seasonal Streams Contribute Iron to the Ross Sea
Analysis of nutrient concentrations in four streams that discharge to the Southern Ocean indicates they are important sources of iron and phosphorous for coastal phytoplankton communities.
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Rising Methane Emissions Could Derail the Paris Agreement
A new study looks for the source of a spike in the potent greenhouse gas methane.