The space environment refers to the conditions and characteristics found beyond Earth's atmosphere. It includes a vacuum with very low pressure, extreme temperatures, and high levels of radiation. In this environment, there is no air, which means sound cannot travel, and objects experience microgravity, allowing them to float. In outer space, various phenomena occur, such as solar winds and cosmic rays, which can affect spacecraft and astronauts. The absence of atmosphere also means that celestial bodies, like the Moon and Mars, have no weather systems, leading to stark landscapes and temperature fluctuations. Understanding the space environment is crucial for space exploration and safety.