GoKawiilTidal gravity data point to hot spot beneath Mars' crustal divide
Scientists modeled how Mars' gravity field shifts over time due to solar tides, using a technique that lets gravity harmonic coefficients vary periodically at annual, semi-annual and other frequencies within orbit-determination software. By tracking these small periodic gravity variations, they detected a thermal anomaly located beneath the boundary separating Mars' northern lowlands and southern highlands, known as the crustal dichotomy.
GoKawiil's interpretation of the reporting above, not reported fact.
This tidal tomography technique offers a new, indirect way to probe the interior structure and temperature of Mars without seismic instruments at that specific location. Finding a thermal anomaly under the dichotomy could help explain why Mars' crust split into two such different hemispheres, a mystery dating to the planet's early history.
- Researchers used time-varying spherical harmonic modeling of Mars' gravity field to study tidal responses.
- The analysis revealed a thermal anomaly beneath the boundary between Mars' northern and southern crustal regions.
- The method demonstrates how orbital gravity tracking can reveal deep interior features without direct seismic access.
Celestron NexStar 6SE Telescope — Mars science like this tidal tomography study starts with looking up — and the NexStar 6SE's computerized GoTo mount makes finding and tracking Mars simple for beginners. Its 6-inch Schmidt-Cassegrain optics reveal the planet's polar caps and dark surface markings, the same hemispheric contrasts researchers study from orbit.
See Celestron NexStar 6SE Telescope on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: nature.com — Berne, 2026-08-26
Published there as: “Tidal tomography reveals a thermal anomaly beneath Mars’s crustal dichotomy”
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