Final answer:
Solar flares thrown out by the sun can cause serious damage to our DNA. The X-rays and ultraviolet radiation from solar flares can ionize atoms and build up a charge on the surface of a spacecraft, damaging its electronics.
Step-by-step explanation:
The sun throws out huge plasma clouds called solar flares, which can cause serious damage to our DNA. Solar flares shower the upper atmosphere of Earth with X-rays, energetic particles, and intense ultraviolet radiation. The X-rays and ultraviolet radiation can ionize atoms in Earth's upper atmosphere, and the freed electrons can build up a charge on the surface of a spacecraft. When this static charge discharges, it can damage the electronics in the spacecraft.