The Solar System consists of the Sun and eight planets, along with several dwarf planets, including Pluto. According to NASA, the entire system is enveloped by a “giant bubble” known as the heliosphere. This heliosphere is formed by solar winds, which are a continuous stream of charged particles emitted by the Sun. These solar winds can travel up to three times the distance to Pluto. The heliosphere acts as a protective shield, safeguarding the Solar System from galactic rays that have the potential to alter our genetic makeup.
Causes of Ice Ages
Ice ages are periods when glaciers cover a significant portion of the Earth’s surface. Various factors contribute to the occurrence of ice ages, including:
1. Planet’s Tilt and Rotation: Changes in the Earth’s tilt and its rotational dynamics can influence climatic patterns, leading to ice ages.
2. Plate Tectonics: The movement and interaction of the Earth’s tectonic plates can affect ocean currents and atmospheric conditions, contributing to ice ages.
3. Volcanic Eruptions: Volcanic activity can release large amounts of ash and gases into the atmosphere, which can block sunlight and result in a cooling effect.
4. Carbon Dioxide Levels: Fluctuations in atmospheric carbon dioxide levels can significantly impact global temperatures, influencing the onset of ice ages.
Understanding these factors helps in comprehending the complex nature of Earth’s climate and the various forces that shape it over geological timescales.
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