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Scientists have revealed the ancient secret of Mars. Photo: pixabay
Scientists at the University of British Columbia accurately determined when Mars, where Elon Musk promised to send a million earthlings in 30 years, had a magnetic field. According to his calculations, the magnetic field was there 4.5 and 3.7 billion years ago.
The results of the study are published in the journal Science Advances.
The specialists analyzed the long-term satellite data collected by the MAVEN and Mars Global Surveyor devices and found evidence of the existence of a magnetic field in the Lucus Planum region, formed by a lava flow that froze less than 3.7 billion years ago. years.
The researchers also discovered low-intensity magnetic fields over the Northern Polar Basin in the planet’s northern hemisphere, which formed 4.5 billion years ago and is considered one of the oldest objects on Mars.
The geomagnetic dynamo, when the planet’s iron core rotated and generated a magnetic field, is known to have been active between 4.3 and 4.2 billion years ago, but was absent 3.9 billion years ago.
One possible explanation for this is that the dynamo stopped for a while and then started again. According to an alternative scenario, the blows of the celestial bodies that formed the basins displaced part of the crust, which contained magnetized minerals.
Strana previously wrote that SpaceX postponed launching satellites due to the coronavirus, providing internet coverage for the Starlink system.
We also said that in the Allan Hills 84001 Martian meteorite, discovered in 1984 in Antarctica, Japanese scientists found organic nitrogen-containing molecules. This means that there was organic matter on Mars that could be brought by meteorites or formed on the planet.
