![]() ![]() But if Earth is in the path of the particle stream, our planet’s magnetic field and atmosphere react from the impact. When charged particles interact with Earth’s atmosphere When the charged particles from the sun strike atoms and molecules in Earth’s atmosphere, they excite those atoms, causing them to light up. What does it mean for an atom to be excited? Atoms consist of a central nucleus and a surrounding cloud of electrons encircling the nucleus in an orbit. When charged particles from the sun strike atoms in Earth’s atmosphere, electrons move to higher-energy orbits, further away from the nucleus. Then when an electron moves back to a lower-energy orbit, it releases a particle of light or photon. What happens in an aurora is similar to what happens in the neon lights we see on many business signs. Electricity excites the atoms in the neon gas within the glass tubes of a neon sign. ![]() That’s why these signs give off their brilliant colors. The aurora works on the same principle, but at a far vaster scale. When charged particles from the sun strike air molecules in Earth’s magnetic field, they cause those molecules’ atoms to become excited. The shapes of the northern and southern lights The molecules give off light as they calm down. The aurora often appears as curtains of lights, but they can also be arcs or spirals, following lines of force in Earth’s magnetic field. Most are green in color, but sometimes you’ll see a hint of pink. Strong displays might also have red, violet and white colors. ![]() The lights typically appear in the far north – the nations bordering the Arctic Ocean – Canada, Scandinavian countries, Iceland, Russia and the state of Alaska. But strong displays can extend down into more southerly latitudes. And of course, the lights have a counterpart at Earth’s south polar regions, though there is less land at high southerly latitudes for people to witness the displays. The colors in the aurora were once a source of mystery throughout human history. But science says that different gases in Earth’s atmosphere give off different colors when they are excited. Oxygen gives off the green color of the aurora, for example. network ,x.d.So today the mystery of the aurora is not so mysterious as it used to be. chinese bilibililiaotechcrunch ,bilibili chinese bilibililiaotechcrunch ,bilibili hk960m network ,hk960m chinese bilibililiaotechcrunch ,bilibili x.d. ,bilibili hk960m chinese ,bilibili hk960m taptap ,network taptap bilibililiaotechcrunch ,hk960m network chinese ,bilibili hk960m bilibililiaotechcrunch ,x.d. chinese bilibililiaotechcrunch ,hk960m x.d. network chinese taptap ,bilibili network chinese taptap ,bilibili x.d. taptap ,hk960m chinese taptap ,bilibili x.d. network taptap ,hk960m network bilibililiaotechcrunch ,hk960m chinese taptap bilibililiaotechcrunch ,hk960m x.d. network bilibililiaotechcrunch ,hk960m taptap bilibililiaotechcrunch ,hk960m x.d. network bilibililiaotechcrunch ,bilibili hk960m x.d. chinese taptap ,hk960m network chinese bilibililiaotechcrunch ,bilibili hk960m taptap bilibililiaotechcrunch ,hk960m x.d. network taptap bilibililiaotechcrunch ,bilibili hk960m x.d. network chinese bilibililiaotechcrunch ,hk960m x.d. network taptap bilibililiaotechcrunch ,hk960m x.d. ![]() chinese taptap bilibililiaotechcrunch ,bilibili hk960m x.d. chinese taptap ,hk960m network taptap bilibililiaotechcrunch ,hk960m x.d. chinese ,hk960m network chinese taptap ,bilibili hk960m network chinese ,bilibili hk960m x.d. network chinese taptap ,bilibili hk960m chinese taptap ,bilibili hk960m x.d. taptap bilibililiaotechcrunch ,bilibili hk960m network taptap ,bilibili hk960m x.d. network chinese taptap ,bilibili hk960m x.d. ,bilibili hk960m network chinese taptap ,bilibili hk960m network taptap bilibililiaotechcrunch ,hk960m x.d. Network, which runs Chinese game distribution platform TapTap mobile games accounted for 40% of Bilibili’s 2020 revenues - Competition in China’s gaming industry is getting stiffer in recent times as tech giants sniff out potential buyouts and investments … ![]()
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