Skylight with solar protection, the skylight comprising, on the one hand, flashing able to be fixed, imperviously, into a skylight opening made in a roof covering, and a filling and closure covering, made of a translucent or transparent impervious material allowing skylighting and complete closure of the skylight opening, the said filling and closure covering being fixed to the flashing by means of a fixed or opening support frame, and the said skylight on the other hand comprising solar protection means, - the said solar protection means consist of a rigid screen, extending as a surface above or below the said filling and closure covering, the said screen taking the form of a substantially planar sheet, the core of which is made of a honeycomb structure comprising a juxtaposition of prismatic passages of which the axes are oriented, on the one hand, substantially perpendicular to the planes containing the large faces of the said sheet or obliquely with respect to the normals to the said planes and, on the other hand, parallel to or oblique with respect to the axis of the skylight opening, the said honeycomb structure being able to break up or cut off direct rays of the sun through an effect of diffraction and/or of reflection off the walls of the said prismatic passages while at the same time maintaining the level of diffuse light transmitted therethrough upstream of the said skylight opening and to passively regulate the level of light thus transmitted, - the screen and the filling and closure covering being separated from one another with a stationary or ventilated intermediary air gap, with a continuous or discontinuous peripheral spacer, with a break in the thermal bridge or no break in the thermal bridge, the said screen and the said filling and closure covering forming an assembly, of the double glazing type, fixed to the flashing by means of the fixed or opening support frame, the said skylight being characterized in that the screen and the filling and closure covering also take the form of a sheet, extending substantially parallel to one another. - the said solar protection means consist of a rigid screen, extending as a surface above or below the said filling and closure covering, the said screen taking the form of a substantially planar sheet, the core of which is made of a honeycomb structure comprising a juxtaposition of prismatic passages of which the axes are oriented, on the one hand, substantially perpendicular to the planes containing the large faces of the said sheet or obliquely with respect to the normals to the said planes and, on the other hand, parallel to or oblique with respect to the axis of the skylight opening, the said honeycomb structure being able to break up or cut off direct rays of the sun through an effect of diffraction and/or of reflection off the walls of the said prismatic passages while at the same time maintaining the level of diffuse light transmitted therethrough upstream of the said skylight opening and to passively regulate the level of light thus transmitted, - the screen and the filling and closure covering being separated from one another with a stationary or ventilated intermediary air gap, with a continuous or discontinuous peripheral spacer, with a break in the thermal bridge or no break in the thermal bridge, the said screen and the said filling and closure covering forming an assembly, of the double glazing type, fixed to the flashing by means of the fixed or opening support frame, the said skylight being characterized in that the screen and the filling and closure covering also take the form of a sheet, extending substantially parallel to one another.