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unsolved mysteries

Colored lines in a spiral pattern overlay a plain white sphere.
Posted inNews

Spiral Waves May Explain the Sun’s Baffling Rotation

by Matthew R. Francis 29 May 202429 May 2024

New observations and models show a connection between high-latitude waves in the Sun’s interior and the different rates of spin between the solar equator and poles.

A planet with oceans, clouds, and landmasses appears against a black background.
Posted inNews

A Step Closer to Solving the Fermi Paradox

Katherine Kornei, Science Writer by Katherine Kornei 24 May 20249 January 2025

Finding evidence of complex life elsewhere in the Milky Way galaxy hinges on locating rocky planets with plate tectonics and a mixture of landmasses and oceans, new research suggests.

The Moon with its center exposed and two thin blobs oriented toward the center
Posted inNews

The Moon’s Mantle Did a Flip—and Scientists May Now Have Evidence

Javier Barbuzano, Science Writer by Javier Barbuzano 8 May 20248 May 2024

For decades, a lunar whodunit has puzzled scientists: Did the Moon’s internal layers flip during its formation? Old data might hold the evidence to solve this cold case.

A mountain in the distance next to a body of water
Posted inNews

Middle-of-the-Road Mountains Form the Best Carbon Sinks

by Martin J. Kernan 26 April 202416 July 2025

Silicate rock weathering has a sweet spot: erosion that isn’t too fast or too slow.

An Apollo 11 astronaut installs a seismometer on the lunar surface. Footprints are visible in the lunar regolith, and the seismometer is a shiny device about the size of a kitchen table.
Posted inENGAGE, News

Fiber-Optic Networks Could Reveal the Moon’s Inner Structure

by Elise Cutts 3 April 202414 May 2024

Distributed acoustic sensing offers a cost-effective alternative to traditional seismic arrays, and building such a network on the Moon might be possible.

Colorful multibeam bathymetry shows pits likely created by porpoises on the seafloor. Some pits have merged together to create bigger conjoined pits.
Posted inNews

Mysterious Seafloor Pits May Be Made on Porpoise

by Andrew Chapman 15 February 202415 December 2025

Some shallow seafloor depressions off the coast of Germany that look like those associated with methane might instead be the work of porpoises.

A bright point of light surrounded by rings, rendered in red
Posted inNews

Did a Cosmic Explosion Make the Ionosphere Dance?

by Matthew R. Francis 8 January 20248 January 2024

Researchers have linked a 2022 gamma ray burst to a disturbance in the upper atmosphere, but proving the connection highlights the problems with this kind of measurement.

Tourists watch Old Faithful erupt.
Posted inNews

Steamy Bubbles May Control Old Faithful’s Clock

by Joseph Howlett 19 December 202319 December 2023

Scientists built a minigeyser to show why the natural wonder’s water surges so violently between eruptions.

Artist’s rendering of NASA’s Parker Solar Probe during a fly-by of Venus
Posted inNews

Lightning Struck Down as Source of a Venus Whistler

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 13 December 202313 December 2023

Whistlers were a key piece of evidence in favor of Venusian lightning. New measurements question the connection.

A large bolt of lightning strikes the ocean.
Posted inNews

Ocean Vessels May Trigger Lightning Strikes

by Nathaniel Scharping 11 December 202311 December 2023

Previous research indicated aerosols in ship exhaust could enhance lightning. New research indicates the ships themselves may be to blame as well.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Tiny Cyanobacteria May Be the Secret Heroes of Ocean Carbon Sequestration

10 September 202610 September 2026
Editors' Highlights

Waves Play a Key Role for Lateral Stirring and Mixing of Ocean Tracers

11 September 202611 September 2026
Editors' Vox

How Can We Make Better Decisions About What Lies Underground?

10 September 202610 September 2026
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