English to Persian (Farsi) Science Astronomy & Space Telescopes on space

This theme investigates our Sun and how its structure and behavior affect Earth. The Sun’s energy is responsible for the
Earth’s present ecosystem, but the Sun is a variable star. Its small variability profoundly affects the Earth. Changes in its
long-term brightness cause ice ages, and its 11-year cycle of activity causes aurora and other disturbances on the Earth.
Solar flares affect the upper atmosphere and can damage satellites and disable the power distribution grid on the ground.
The Sun is also our nearest star and is an ideal laboratory for basic physics and learning about other stars.