<p class="ql-block"><b style="font-size: 22px;">Earth's magnetic field forms a shield that protects us from the solar wind. When the solar wind gets stronger, it penetrates the magnetic field. The stream of particles interacts with gases in the magnetosphere, generating auroras </b></p><p class="ql-block"><b style="font-size: 22px;">Google翻译：</b></p><p class="ql-block"><b style="font-size: 22px;">地球磁场形成一个屏障，保护我们免受太阳风的侵害。当太阳风变得更强时，它会穿透磁场。粒子流与磁层中的气体相互作用，产生极光</b></p> <p class="ql-block"><b style="font-size: 22px;">Earth's Magnetic Field: The Earth has a magnetic field generated by the movement of molten iron and nickel in its outer core. This magnetic field extends into space and forms a protective shield around the planet.</b></p><p class="ql-block"><b style="font-size: 22px;">Solar Wind: The Sun emits a continuous stream of charged particles, mainly electrons and protons, known as the solar wind. This solar wind travels through the solar system, including towards Earth.</b></p><p class="ql-block"><b style="font-size: 22px;">Magnetosphere: The solar wind encounters Earth's magnetic field in a region called the magnetosphere. The magnetic field deflects most of the solar wind particles, preventing them from directly reaching the Earth's surface.</b></p><p class="ql-block"><b style="font-size: 22px;">Solar Wind Penetration: However, during periods of increased solar activity, such as solar storms or high solar wind intensity, some particles from the solar wind can penetrate the magnetosphere and interact with the Earth's atmosphere.</b></p><p class="ql-block"><b style="font-size: 22px;">Auroras: When solar wind particles enter the Earth's atmosphere near the magnetic poles, they collide with gas molecules, such as oxygen and nitrogen. These collisions excite the gas molecules, causing them to emit light. The result is the beautiful natural light displays known as auroras, or the Northern and Southern Lights.</b></p><p class="ql-block"><b style="font-size: 22px;">Colors of Auroras: The specific colors of the auroras depend on the type of gas particles involved in the collisions and their altitude. Oxygen at higher altitudes can produce red and green auroras, while nitrogen can contribute to purple, blue, and pink hues.</b></p><p class="ql-block"><b style="font-size: 22px;">Google翻译：</b></p><p class="ql-block"><b style="font-size: 22px;">地球磁场：地球的磁场是由其外核中熔融铁和镍的运动产生的。这个磁场延伸到太空并在地球周围形成一个保护罩。</b></p><p class="ql-block"><b style="font-size: 22px;">太阳风：太阳发射连续的带电粒子流，主要是电子和质子，称为太阳风。这种太阳风穿过太阳系，包括向地球传播。</b></p><p class="ql-block"><b style="font-size: 22px;">磁层：太阳风在称为磁层的区域遇到地球磁场。磁场使大部分太阳风粒子发生偏转，阻止它们直接到达地球表面。</b></p><p class="ql-block"><b style="font-size: 22px;">太阳风穿透：然而，在太阳活动增强期间，例如太阳风暴或太阳风强度较高，太阳风中的一些粒子可以穿透磁层并与地球大气层相互作用。</b></p><p class="ql-block"><b style="font-size: 22px;">极光：当太阳风粒子进入磁极附近的地球大气层时，它们会与氧气和氮气等气体分子发生碰撞。这些碰撞激发气体分子，使它们发光。结果就是美丽的自然光显示，称为极光或北极光和南极光。</b></p><p class="ql-block"><b style="font-size: 22px;">极光的颜色：极光的具体颜色取决于碰撞中涉及的气体粒子的类型及其高度。高海拔地区的氧气可以产生红色和绿色的极光，而氮气则可以产生紫色、蓝色和粉红色的色调。</b></p> <p class="ql-block"><b style="font-size: 22px;">Solar wind is a stream of charged particles, primarily electrons and protons, flowing outward from the Sun into space. It is a continuous stream that carries the Sun's outer atmosphere, known as the corona, along with it. The solar wind plays a crucial role in the interaction between the Sun and the planets in our solar system.</b></p><p class="ql-block"><b style="font-size: 22px;">Google 翻译：</b></p><p class="ql-block"><b style="font-size: 22px;">太阳风是带电粒子流，主要是电子和质子，从太阳向外流入太空。它是一股连续的气流，携带着太阳的外层大气，即日冕。太阳风在太阳与太阳系行星之间的相互作用中起着至关重要的作用。</b></p> <p class="ql-block"><b style="font-size: 22px;">2023-02-27 摄于Calgary卡尔加里/加拿大🇨🇦</b></p> <p class="ql-block"><b style="font-size: 22px;">2023-02-27 摄于Calgary卡尔加里/加拿大🇨🇦</b></p> <p class="ql-block"><b style="font-size: 22px;">2023-02-27 摄于Calgary卡尔加里/加拿大🇨🇦</b></p>