The type of radiation that gets reflected away from the Earth's surface is infrared radiation, also known as terrestrial radiation. Infrared radiation is part of the electromagnetic spectrum and has longer wavelengths than visible light. The Earth absorbs energy from the sun in various forms, including visible light, ultraviolet radiation, and infrared radiation. However, the Earth's surface also emits infrared radiation due to the thermal energy stored within the planet. This infrared radiation is reflected back into space by certain components of the atmosphere, such as greenhouse gases like carbon dioxide and water vapor, creating what is known as the greenhouse effect.