NOVELTY - The structure i.e. collapsible terrestrial solar panel (1120) has a front support structure (1130) coupled with a slit-tube longeron (1125) at a location of the longeron. A back support structure (1135) is coupled with the longeron at another location. An adjustment of an angle between the front and the back structures causes deformation of a cross-sectional profile of the longeron, and the back structure. The longeron, and the structures are stowed as a roll that includes the longeron, the front and the back structures, where the roll is rolled along a longitudinal length of the longeron.    USE - Deployable structure i.e. solar array structure such as collapsible terrestrial space-bound solar panel array for use in an on-orbit spacecraft. Can also be used for structures such as bridges, support structures, load bearing structures, beams, support structures, litters, bridges, buildings, and tents.    ADVANTAGE - The structure ensures that the angle of the front support structure can be adjusted so as to improve solar panel efficiency and enable the collapsible terrestrial solar panel to be used at any latitude. The structure ensures that the solar array with greater mass and volume efficiency can be used to increase the capability or decrease the cost of a spacecraft for any mission due to extremely constrained nature of spacecraft design and nearly all spacecraft require solar arrays for power. The solar panel can be stowed, once deployed, so that the longerons, support structures, and/or solar cells can be flattened and rolled together to form a singular roll, thus facilitating portability.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for manufacturing a deployable structure.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a collapsible terrestrial solar panel.    Collapsible terrestrial solar panel (1120)    Longerons (1125,1132)    Front support structure (1130)    Connecting elements (1134)    Back support structure (1135)