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gravity

Map of the Hawaiian islands with colors and contour lines overlain.
Posted inEditors' Highlights

A Strong Pacific Plate Bends Under the Hawaiian Volcanic Chain

by Emilie Hooft 14 March 202413 March 2024

Two seismic studies reveal the volcanic loads and resulting flexure of the Pacific plate at the Hawaiian Ridge and, surprisingly, show no magmatic underplating.

Illustration showing the orbits of three planets around a red star, with depictions of what the planets might look like
Posted inNews

Giant Planets May Be “Agents of Chaos”

Damond Benningfield, Science Writer by Damond Benningfield 18 December 202318 December 2023

Two studies suggest that some giants could make it difficult or even impossible for terrestrial planets to remain in a star’s habitable zone.

A star surrounded by dust
Posted inNews

Astronomers May Have Spotted the Birth of a Planet

Javier Barbuzano, Science Writer by Javier Barbuzano 29 August 202329 August 2023

Lumps of dust are spiraling around a young star 5,000 light-years away. They could be Jupiter-like planets in the making.

View of the half-illuminated Moon surrounded by black space
Posted inResearch Spotlights

Visualizing the Deep Insides of Planets and Moons

Sarah Stanley, Science Writer by Sarah Stanley 10 August 202314 August 2023

A novel method uses gravity data to determine where density anomalies lie inside planetary bodies.

Photo of a bell pepper plant experiment
Posted inEditors' Vox

Air Flow Dynamics in Wet Soils: Challenges and Knowledge Gaps

by Ilan Ben-Noah 6 July 20235 July 2023

Modeling air flow in wet porous media relies on quantifying the combined role of fluid and media properties and flow dynamics on the microscale displacement mechanisms and macroscale unstable flow.

Artist’s impression of LP 791-18 d, an exoplanet heated by tides
Posted inNews

Nearby Volcano Planet Likely Fueled by Tidal Heating

Javier Barbuzano, Science Writer by Javier Barbuzano 22 June 202322 June 2023

A gravitational dance between a newly discovered exoplanet and its host star may be driving extreme volcanism on its surface.

Graphs from the paper.
Posted inEditors' Highlights

Wind Shear Instabilities Emit Gravity Waves

by Yuichi Otsuka 27 April 202327 April 2023

A new study shows that atmospheric gravity waves can be generated by the Kelvin-Helmholtz instabilities in the wind shear layer.

An artist’s illustration of a brownish orb in front of a background of white stars. A ring made up of small gray pieces of debris surrounds the orb. To the left of the planet is a smaller brownish orb. To the right is a bright star.
Posted inNews

Quaoar’s Ring Defies Gravity

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 3 March 202324 May 2023

The dwarf planet’s ring makes astronomers question whether a long-held theory about ring and moon formation needs tweaking.

2011年Tōhoku地震后日本Wakuya的鸟瞰图,显示出俯冲地震的破坏力。对太平洋俯冲带的持续重力监测有助于识别出大地震可能发生的地方。图片来源: U.S. Navy/Mass Communication Specialist 3rd Class Alexander Tidd, CC BY-NC 2.0
Posted inResearch Spotlights

东日本大地震前几个月的重力变化

Sarah Derouin, Science Writer by Sarah Derouin 25 October 202225 October 2022

研究人员利用GRACE卫星数据发现了发生在地球深部的地震事件之前的重力异常信号。

A small coastal shipping town in Japan is devastated by an earthquake. In this photo taken from a plane, the wreckage of hundreds of buildings can be seen, and only a handful remain standing. In the center of the image, a small yacht is perched on top of one of the only remaining buildings. The town is surrounded by mountains and forests. One of the plane’s wheels is visible in the lower left corner of the image.
Posted inResearch Spotlights

Months of Gravity Changes Preceded the Tōhoku Earthquake

Sarah Derouin, Science Writer by Sarah Derouin 1 September 202225 October 2022

Using GRACE satellite data, researchers discovered anomalous gravimetric signals that occurred before a seismic event that started deep within Earth.

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