Scientists Baffled by Bizarre “Anomaly” Deep Beneath the Surface of Mars
"Scientists usually assume that the interiors of planetary bodies are generally spherically symmetric, but this is not necessarily true." The post Scientists Baffled by Bizarre “Anomaly” Deep Beneath the Surface of Mars appeared first on Futurism .
Scientists have discovered an unusual "thermal asymmetry" hidden deep beneath Mars' southern hemisphere, leading to numerous questions about the planet's history and potential for life. The findings, published in the journal Nature, reveal that the southern half of Mars is significantly warmer than the northern half, ranging from 400 to 750 degrees Fahrenheit.
Coauthor Amirhossein Bagheri explained that this temperature variation could provide crucial insights into periods when Mars was warm enough to support life billions of years ago.
The surfaces of Mars' two hemispheres differ dramatically: the southern half is heavily cratered, stands several miles higher, and is colder, while the northern hemisphere is relatively smooth, dotted with plains. Lead author Alexander Berne, a planetary scientist at the University of Arizona, noted that scientists generally assume planetary interiors are spherically symmetric, but this is not always the case.
"These inferences in turn give us a blueprint for designing future missions and scientific exploration of these worlds," he added.
The anomaly may indicate that Mars' southern mantle was once covered in a magnetic field that triggered unique changes, or it could have influenced the planet's hydrology, potentially shaping the formation of water-containing basins. Scientists are currently exploring several hypotheses for the anomaly's origin, including a giant impact, random convection currents, or the thick southern highlands crust that has persisted for billions of years.
Paul Byrne, a planetary scientist at Washington University in St. Louis, pointed out that the planet's largest volcanic province is located on the boundary between the north and south, not within the hotter southern region. This remains an open question in Mars science. "This study doesn't provide an answer to it, but adds another line of evidence to figure out what is actually going on underneath Mars," said Brown University planetary scientist Nick Wagner.
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