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S. Hall

Shannon Hall, a freelance science journalist, covers topics ranging from geysers to galaxies. Over the past 8 years she has received four degrees—two bachelor’s degrees in astronomy and philosophy and two master’s degrees in astronomy and science journalism—and has lived in eight different states. For the moment she has settled down in Hanover, N.H., happy to be a tiny dot in a big landscape.

An artist’s impression shows the view from the surface of one of the seven worlds that circle the cool dwarf star TRAPPIST-1.
Posted inNews

A New Theory May Explain “Impossible” TRAPPIST-1 Planets

by S. Hall 12 May 201728 September 2021

The proposed formation scenario relies on unconventional processes to account for a bevy of seven Earth-sized exoplanets recently found orbiting an unlikely star.

Improving the equation of state for silica can provide insight into the big impacts that shaped the solar system.
Posted inResearch Spotlights

New Insight into Silica Explains Planetary Smashup

by S. Hall 8 November 201628 January 2022

A better equation of state for silica will help planetary scientists accurately constrain the giant impacts that have shaped our solar system.

Tracking global gravity changes can help scientists better understand natural hazards like droughts and lava flows.
Posted inResearch Spotlights

A New Model to Improve Gravity Models

by S. Hall 7 November 20161 November 2021

Data from the Gravity Recovery and Climate Experiment (GRACE) mission gets a new and improved look.

Improved modeling of water runoff from heavy rainfall events could help communities prepare for hazards like the 2016 flooding in Baton Rouge.
Posted inResearch Spotlights

Modeling Rainfall Runoff

by S. Hall 3 November 20163 November 2016

New framework unifies existing models for better analysis of the flowing water produced by heavy rain events.

Scientists find new clues to explain how rivers get their shape.
Posted inResearch Spotlights

Groundwater: A Hidden Influence on River Shape

by S. Hall 2 November 20161 December 2022

A new study shows how groundwater influences river dynamics and channel pattern.

Understanding how the ocean absorbs carbon dioxide will help scientists to improve climate change modeling.
Posted inResearch Spotlights

Can We Predict the Future of Ocean Carbon Dioxide Uptake?

by S. Hall 18 October 201615 November 2021

A new understanding of uncertainties in climate change models allows scientists to decide which source to tackle first in order to better forecast our planet's changing climate.

Variations in rock hold clues to the movement of the intertropical convergence zone and how it may have influenced the Earth’s climate. Title tag: Variations in rock hold clues to the movement of the intertropical convergence zone and how it may have influenced the Earth’s climate.
Posted inResearch Spotlights

Simulating the Climate 145 Million Years Ago

by S. Hall 10 October 201620 April 2022

A new model shows that the Intertropical Convergence Zone wasn't always a single band around the equator, which had drastic effects on climate.

cloud-climate-modeling-decomposition-feedback
Posted inResearch Spotlights

Eliminating Uncertainty One Cloud at a Time

by S. Hall 3 October 20163 February 2022

The impact of clouds on climate change has been a scientific mystery for decades. Now researchers are fighting to gain the upper hand.

seismology-model-study-subduction-zone-characteristics
Posted inResearch Spotlights

Seismological Models Are Biased, but Scientists Have a Solution

by S. Hall 26 September 201629 September 2016

Many seismic wave models are based on an erroneous assumption about the Earth's interior. A new technique corrects this by eliminating false signals produced by models.

Artist’s conception of a lush, early Mars (left) compared to arid, present-day Mars.
Posted inNews

A Flip-Flopping Climate Could Explain Mars's Watery Past

by S. Hall 13 September 201613 September 2016

A new hypothesis might reconcile two opposing theories that have tried to explain Mars's mysterious history for more than 40 years.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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