A warning published today by the British Medical Council says that staring at the Sun for hours on end could seriously damage a person's eyesight, and could, ultimately result in blindness.
The Sun is a giant orange orb in space, located around 93 million miles from the Earth, at the very center of the solar system.
It is made up of very hot plasma, indeed.
It appears, to people on the Earth's surface, in the sky above them when they wake up in the morning, which is convenient, as, if it were to appear at night, everyone would be in bed, and it would go unnoticed.
It's thought that the brightness of the Sun is just too powerful for the human eye to withstand, and looking at it for more than one second is enough to start the irreversible deterioration of the eyes.
Plus, anyone who is bored or stupid enough to look at The Sun with the naked eye, needs to take a good look at themselves, rather than it.