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Mysterious Magnetic Pulses Discovered on Mars by InSight
- minton 7y agoI am always surprised when an article makes the top 20 without any comments. It helps me realize how much I value the comments.
- ianai 7y agoPaywall. But I got as far as to see there are signs of deep subsurface water.
- Jun8 7y agotl;dr: The InSight lander, which touched down in Nov'18 has found that the planet's magnetic field sometimes starts to pulsate in ways that have never before been observed, e.g usually at local midnight. The cause is currently unknown. If you want to dive deeper here's the paper: https://meetingorganizer.copernicus.org/EPSC-DPS2019/EPSC-DPS2019-838-1.pdf https://meetingorganizer.copernicus.org/EPSC-DPS2019/EPSC-DP...
- petschge 7y agoThe fact that the phenomenon is associated with local midnight implies that it is not a geophysical effect, but connect to the interaction of the solar wind with the planetary magnetic field. This is also what the paper you linked said: "We speculate that the observed magnetic pulsations by InSight to date are associated with fluctuations in the induced magnetotail and on the magnetospheric boundary." So unless a researcher has a bright idea the next step is to run high resolution 3d hybrid-kinetic simulations of the Martian magnetosphere and play with the upstream solar wind conditions to see if they can make the oscillations show up in simulations. But that is not exactly easy or (computationally) cheap. But if we are lucky there will be new insights in time for the AGU meeting in December.
- michaelfaraday 7y agoIn the 1800s, I hypothesized the Earth's magnetic field ran through the oxygen in the atmosphere. A few of my correspondents and I were thinking the oxygen, at certain temperatures and latitude, would provide a driving force for the wind. I'm puzzled to know why, at this day and age, science still believe the main reason wind blows is from convective action of the heat from the sun! Even when faced by the fact that in repeated experiments (by myself and others) that magnetic fields come and go at different temperatures! Does the World still read in this DREAM? I'd talk about vibration, but I've been told by Tesla that everyone here is insane and wouldn't believe him about it. You can read more about this in my lab notes available on Amazon: https://www.amazon.com/Experimental-Researches-Electricity-Michael-Faraday/dp/0342400177/ https://www.amazon.com/Experimental-Researches-Electricity-M...
- mlthoughts2018 7y agook ok ... back in the cage
- eskaytwo 7y agoThus Spoke Zarathustra
- eskaytwo 7y agoNo one else thought of 2001 and the Tycho Magnetic Anomaly?
- makz 7y agoTMA-1
- pndy 7y agoEPMA, Elysium Planitia Magnetic Anomaly