A method combining three different approaches to the processing and analysis of GRAIL data from the Moon defines areas of sharply contrasting densities beneath Aristarchus Crater.
gravity
Posted inNews
Bridging Old and New Gravity Data Adds 10 Years to Sea Level Record
The remarkable agreement between the two techniques shows how scientists can bolster state-of-the-art gravimetry instruments with old-guard altimetry satellites.
Posted inEditors' Highlights
Ionospheric Changes Following the Geomagnetic Storm of May 2024
A new study finds that unique ionospheric changes occurred in the upper atmosphere in response to the May 2024 geomagnetic superstorm.
Posted inEditors' Highlights
Imaging Magma from Afar
Reservoirs of magma and fluids in the crust create gravity anomalies detectable by altimetry, which can help find submarine volcanoes and provide key insights into their depth, shape and volume.
Posted inResearch Spotlights
Core Movements Could Be Causing Tiny Shifts in Earth’s Spin Speed
Researchers use ancient eclipse data and new machine learning techniques to understand what processes changed the length of Earth’s days over the past 3,000 years.
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The Relatively Messy Problem with Lunar Clocks
Using Einstein’s theory of general relativity, physicists found that clocks on the Moon would run 56 microseconds faster than clocks on Earth. That finding will help future lunar missions navigate.
Posted inEditors' Highlights
Timing the Global Expansion on the Moon
A new analysis of the relation between randomly oriented linear gravity anomalies and two large craters on the Moon implies that the gravity anomalies formed over a long period of time.
Posted inResearch Spotlights
The Moon’s Tides Hint at a Melty Lunar Layer
New lunar gravity measurements support the idea that a partially molten mantle layer is sandwiched between the rest of the Moon’s mantle and its core.