The solution of the problem of the Lyman-alpha radiation field in the solar atmosphere simultaneously with discovery of the current sheets (CS) in the Nature (on the Sun) have allowed by the author to revise both the available models of solar atmosphere and the nature of the corona. We distinguish four zones now in the external solar atmosphere, in their sequence and in their physical sense: photosphere, transition zone, chromosphere, and corona. Now, it is believed that coronal plasma temperature has exceeded of million degrees. Our results indicate the structure of the corona composed of multiple non-thermal jets of the CS that change the very notion of the term of temperature. The corona is transparent in all hydrogen lines of the Lyman series (the A case of Menzel approximation) and radiative processes take only place in excitation of hydrogen plasma. In the solar atmosphere physical conditions of any of zones are determined, in other equal conditions, by the hydrogen plasma density only. The corona begins when the density of plasma will decreased to nH 10 18 cm -3 , the continuous spectrum of the Sun arises, which is the radiation spectrum of negative hydrogen ions. In a vertical current sheet, the plasma density gradient causes a sharp decrease in the thickness of the compressed CS layer up to zero to the its middle and it turns the CS into the piston with one-sided eject up of the plasma. Multiple set of such accelerated plasma flows up and provides seemingly heat of the corona.