The auroras are the result of a complex interaction between the solar wind and the Earth’s magnetic field. Here’s what happens. The sun’s heat charges the particles in the solar wind, a stream of electrically charged subatomic particles that continually emanates from the sun. As the ...
The auroras(极光) the northern lights in the Northern Hemisphere, and the southern lights in the Southern Hemisphere are brilliant natural spectacles that can be seen in the evening sky especially at higher latitudes. Unlike other phenomena of the night sky.such as meteors and comets, the auroras...
Similarly, the closer we are to the peak, the more eruptions from the Sun's surface we tend to see. Thesecoronal mass ejectionsare the result of coronal loops snapping during a solar flare, or when an immensesolar prominencedesta...
Besides the pulsed reconnection mechanism which explains the PMAFs in terms of newly merged magnetic field tube, there are two other possible mechanisms. One of those is based on the presence of a gap between the central plasma sheet and the LLBL / magnetopause. This means that the dayside ...
Auroral emissions from the outer planets have been observed from the ground, Earth-orbiting satellites, flyby spacecraft, and orbiter-based instruments at X-ray, UV, visible, IR, and radio wavelengths. The UV and IR are atmospheric emissions, produced when atmospheric species are excited by the...
How do auroras form in the ionosphere? How does Earth's magnetosphere work? How did the magnetosphere form? What does the magnetosphere attract? How was Earth's magnetosphere discovered? What is the magnetosphere made of? Does the magnetosphere decrease auroras? What are the processes in the ...
Moreover, at higher altitudes, such as when passengers are flying on an airplane, the thinner atmosphere results in more intense exposure to cosmic radiation.(第三段最后两句) 译文:因此,生活在高纬度地区(如黑龙江省)的人比生活在低 纬度地区(如海南省)的人经受的宇宙辐射略多。 此外,在高 海拔地区...
and this is reflected in the number of cosmic rays entering Earth's atmosphere. 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....
latitude (Arctic and Antarctic) regions, caused by the collision of energetic charged particles with atoms in the high altitude atmosphere (thermosphere). The charged particles originate in the magnetosphere and solar wind and, on Earth, are directed by the Earth's magnetic field into the ...
When bursts of charged particles from the sun hit our planet, they mix with the thin gases high above Earth, exciting the air molecules. As that happens, the molecules give off the mesmerizing glow we can observe on Earth as the auroras. But there are other, less visible effects that ...