![]() "Using a 40-year database of satellite observations, we report the first identification of lunar tides on the surface of this plasma ocean." "We can think of the plasmapause as the surface of a 'plasma ocean' surrounding Earth," says one of the lead authors Quanqi Shi of Shandong University. The outer surface of the plasmasphere is called "the plasmapause"-and that is where the tides have been found. It is created by leakage from the top of Earth's atmosphere (the ionosphere). The plasmasphere is a lopsided donut of cold plasma inside Earth's magnetic field. The discovery was published in the Jan 26th edition of Nature Physics. There are tides in Earth's plasmasphere, and they are very strange. ![]() Yet, researchers studying tides have just found a big surprise. Ocean waters rise and fall like clockwork in response to the gravitational pull of the sun and Moon. STRANGE TIDES IN THE PLASMASPHERE: Tides are one of the oldest phenomena known to physics. This is the same active region that produced a dramatic explosion from the farside of the sun on Feb. Amateur astronomers with solar telescopes should point their optics right here to see what is coming. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays.Ī BIG SUNSPOT IS EMERGING: A new and apparently large sunspot is emerging over the sun's southeastern limb. ![]() Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is beginning, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Also, sunspot AR3213 has a 'beta-gamma' magnetic field that harbors energy for M-class solar flares. A new and apparently large sunspot is emerging at the circled location.
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