Before telescopes were invented and human beings ventured into the outer space, nobody knew what the planets or other celestial bodies looked like. Now, with the use of highly advanced telescoping equipment, astronomers and astronauts have captured detailed images of the various kinds of celestial bodies in the solar system. These images are widely available in books as well as the internet, and almost everybody can view the splendor of the solar system, without having to use telescopes, or even eyeglasses.
Here is a list of websites that offer images of solar system bodies:
International Space Station