On 18 February 2021, the Perseverance rover landed in the Jezero Crater on Mars.
He was joined by researchers from UiO, UCLA, the Planetary Science Institute , Vestfonna Geophysical, the Centro de Astrobiología, the Norwegian Polar Institute, NASA's Jet Propulsion Laboratory, and multiple universities. The paper that describes their findings recently appeared in the journalThe Jezero Crater, located in Syrtis Major Planum between the Northern Lowlands and Southern Highlands, measures about 45 km in diameter and is believed to have once been a lake.
They could have been formed when molten rock rose up towards the surface, or, alternatively, they could represent an older delta deposit buried in the crater floor." The most likely explanation for the angled layers they witnessed points toward an igneous origin, where the movement of magma underground deposited rock layers over time that cooled and solidified.
Before Perseverance landed, there were many hypotheses about the exact nature and origin of the crater floor materials. We've now been able to narrow down the range of possibilities, but the data we've acquired so far suggest that the history of the crater floor may be quite a bit more complicated than we had anticipated."
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