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2. F region - Wikipedia

   en.wikipedia.org/wiki/F_region

   The F region of the ionosphere is home to the F layer of ionization, also called the Appleton–Barnett layer, after the English physicist Edward Appleton and New Zealand physicist and meteorologist Miles Barnett. As with other ionospheric sectors, 'layer' implies a concentration of plasma, while 'region' is the volume that contains the said layer.

3. Ionosphere - Wikipedia

   en.wikipedia.org/wiki/Ionosphere

   Relationship of the atmosphere and ionosphere. The ionosphere (/ aɪ ˈ ɒ n ə ˌ s f ɪər /) [1] [2] is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, [3] a region that includes the thermosphere and parts of the mesosphere and exosphere.

4. Kennelly–Heaviside layer - Wikipedia

   en.wikipedia.org/wiki/Kennelly–Heaviside_layer

   Layers of the ionosphere.The Kennelly–Heaviside layer is the E region. The Heaviside layer, [1] [2] sometimes called the Kennelly–Heaviside layer, [3] [4] named after Arthur E. Kennelly and Oliver Heaviside, is a layer of ionised gas occurring roughly between 90km and 150 km (56 and 93 mi) above the ground — one of several layers in the Earth's ionosphere.

5. Ionospheric storm - Wikipedia

   en.wikipedia.org/wiki/Ionospheric_storm

   The F-region is the highest region of the ionosphere. Consisting of the F1 and F2 layers, its distance above the Earth's surface is approximately 200–500 km. [7] The duration of these storms are around a day and reoccur every approximately 27.3 days. [6] Most ionospheric abnormalities occur in the F2 and E layers of the ionosphere.

6. Dark Matter May Not Be Invisible After All. This Discovery ...

   www.aol.com/dark-matter-may-not-invisible...

   The ionosphere is an ideal place to look for the telltale signs of this particular form of dark matter, the scientists explain, because we already spend a lot of time and resources doing studies ...

7. This Chronic Skin Condition Is A Common Cause Of Dark ... - AOL

   www.aol.com/chronic-skin-condition-common-cause...

   In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...