Why hasn't nasa sent a spacecraft to every planet

Don’t have the technology, money, and they are still researching to see if it would work. Many factors play into sending a spacecraft to a new planet. Satellites are helping us discover things to know about the plants so we can improve our spacecraft to with hood the conditions that might be on that certain planet.

light dependent reactions:

release oxygen during the photolysis of wateroccur in the granaproduce atp

light independent reactions:

fix carbon dioxide occur in the stromaproduce glucose

hope this !