How did so much Martian air slip into space? Mark Zastrow 20 April 2021, News 22 April 2021, News 17 February 2021, Research Spotlight So the chef's "magnetic field," as it were, extends to the living room, but not to the second floor of the house. A liquid iron core creates a magnetic field. 2 1. What piece of evidence suggests that the Martian moons did NOT form with Mars? The reason for Mars weak magnetic field is due to the lack of a large lunar moon for a satellite. We have confusing and uncertain results to date. Hey Savvy, how about u read your assignments and do your own damn homework? You can find more information about the Yahoo Answers shutdown and how to download your data on this help page. Mercury's magnetic field is weaker than Earth's because its core had cooled and solidified more quickly than Earth's. 19 March 2021. D: Both B and C are probable. Which statement about Mars’ two moons is FALSE? © 2021 American Geophysical Union. Favorite Answer D) Both B and C are probable A liquid iron core creates a magnetic field. Researchers are using this map to help understand Mars’ history, and how it lost its atmosphere. ... Mars Dried Out Because Its Magnetic Field Is So Weak. At the Hermean equator, the relative strength of the magnetic field is around 300 nT, which is weaker than that of Jupiter's moon Ganymede. Oxygen Seasonality, Utilization Rate, and Impacts of Vertical Mixing in the Eighteen Degree Water Region of the Sargasso Sea as Observed by Profiling Biogeochemical Floats, The Surprising Source of Greenhouse Gas Emissions, An Asteroid “Double Disaster” Struck Germany in the Miocene, Racist Slurs in Place-Names Have to Go, Say Geoscientists, Rising Sea Levels Bring a Tidal Change to Tourism, Stalagmite Layers Reveal Hidden Climate Stories. But new research suggests Mars’s weak magnetic field may have helped its atmosphere escape. Mercury’s field is weak because it rotates so slowly. Mars' magnetic field is so weak because: its core contains less iron than our own. Credit: NASA Like Earth, Mars global magnetic field is believed to have been the result of a dynamo effect caused by action in its core. C: its core contains less iron than our own. Previous spacecraft missions had already estab- lished that the planetary magnetic field, if it existed, was weak with an expected surface field strength estimated at <50 nT. There will be no changes to other Yahoo properties or services, or your Yahoo account. So what time do you suppose YA will close down? Planetary Sciences On Earth, the flow of liquid iron around a hotter solid core conducts electricity that helps keep the magnetic field in place. The detection of a global magnetic field … Mars is best viewed from Earth when it is at: opposition. E: All of the above are correct. Whether those planets have managed to retain their atmospheres like Earth or have lost them to space like Mars could have a major impact on how common life is in the universe. Using magnetohydrodynamic models, the authors explored how varying the strength of Mars’s magnetic field affected the loss of atmospheric ions like oxygen and carbon dioxide into space. Get your answers by asking now. ... models of Earth's azimuthal magnetic field that these things may be necessary for the establishment of a magnetic field. Eos is a source for news and perspectives about Earth and space science, including coverage of new research, analyses of science policy, and scientist-authored descriptions of their ongoing research and commentary on issues affecting the science community. The problem is right in the core of the planet. b) it core may no longer be molten. Well, it’s time to turn out the lights and say goodbye on astronomy and space? Mars' magnetic field is so weak because: A: it spins much slower than Earth does. Is there evidence of life on Mars? Mars' magnetic field is so weak because: its core contains less iron than our own. In essence, they suggested that by positioning a magnetic dipole shield at the Mars L1 Lagrange Point, an artificial magnetosphere could be formed … Decoding the Age of the Ice at Mars’s North Pole, Soil Chips Help Scientists Spy on Fungal Navigation, What Happens When Six Sea Turtles Go Rogue, The 2000‐2012 global warming hiatus more likely with a low climate sensitivity. Journal of Geophysical Research: Space Physics, By it core may no longer be molten. 13 April 2021, Opinion But today, only wisps of that atmosphere are left, clinging thinly to the planet. - WorldAtlas (Journal of Geophysical Research: Space Physics, https://doi.org/10.1029/2019JA026945, 2020), News Mars' magnetic field is so weak because? Weak Fields, Thin Air. d) Both B and C are probable. Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. With no magnetic field, the Sun stripped those ions away up to 100 times faster. It's also smaller which means that it cooled down more rapidly than the Earth, meaning that whatever iron there is, by now it's solid. an alien helicopter was recorded near the mars rover, what more proof do people need that we are not alone? Before I speculate on creating a magnetic field around Mars, let me just say that Mars actually does have an extremely weak magnetic field (~40 times weaker than Earth’s) but only in the southern hemisphere. But as the smaller planet cooled, … Mars had a magnetic field when it was young and its iron core was molten and convecting — which … Mars once had oceans, but its magnetic field just wasn't strong enough to keep the atmosphere - and most of the water - from blowing away. 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