They occur when solar particles react with oxygen at higher altitudes, generally around 180 to 250 miles (300 to 400 km), according to the CSA. At this height, oxygen is less concentrated and is excited at a higher frequency or wavelength, making reds visible. Red auroras are often seen ...
We're now approaching a solar maximum, expected to occur in July 2025, which will be a time when there are a large number of sunspots and increased solar activity. Massey said the solar events that cause auroras will become more common as we head toward the solar maximum. Other plan...
USGS - Auroras and Earthquakes: Strange Companions- Release Date: JULY 6, 2020 In 1722 and 1723 a London clockmaker, George Graham, observed daily and consistent variations on one of his instruments, a “Needle upon the Pin” (a compass), for which he had no explanation. Swedish scientists ...
Auroras, known as the northern lights (aurora borealis) or southern lights (aurora australis) occur when thesolar wind disturbsEarth’s magnetic field. They appear as streaks of color across the sky. What makes photos of these events even more striking than they appear to the eye? As aprofes...
Where does all the light and heat of the sun come from and how does it do it? Why does the sun's radiation output match that of a blackbody? Why does nuclear fusion in the sun only occur near the center? Explain how redioactive d...
And, using the Gemini South telescope located in Northern Chile, a team of scientists has discovered that differences in binary stars occur as a result of variations in chemical compounds of the vast molecular cloud that births them. This information helped the crew confirm, for the first time,...
Do other planets have auroras? Mercury: What do we know about our solar system’s smallest planet? inside Jupiter: What is our solar system’s biggest planet made of?
So we found that during CMEs—with their enormous ejections of particles from the Sun—auroras are particularly intense. Now, as we’ve said, we can predict peaks in sunspot activity, but so far we can’t say the same for CMEs.We don’t know when they’ll occur or how large they’...
So we found that during CMEs—with their enormous ejections of particles from the Sun—auroras are particularly intense. 因此,我们发现在CME期间,由于太阳大量喷射粒子,极光特别强烈。 Now, as we’ve said, we can predict peaks in sunspot activity, but so far we can’t say the same for CMEs...
One of the difficulties in the present controversy is that flares and CMEs often occur together. However, one does not cause the other. Even when flares and CMEs do occur together, there is little relationship between their positions or timing and often there is more energy in the CME than...