You would need to capture the ENTIRE energy output of the sun for about 5 years to generate that much energy. If you can do that, terraforming Mars is nothing,

You would need to capture the ENTIRE energy output of the sun for about 5 years to generate that much energy. If you can do that, terraforming Mars is nothing, you could just grab a bunch of nearby asteroids or a planet or two and combine. And just think about how much material you need in order to build a collector large enough to entirely encompass the sun - it's WAY WAY WAY larger than your added Mars mass. Also you would need a magical strength material just to hold those lightspeed objects in place (think of the huge centrifugal force they are generating). There's nothing in the world that could hold them in place. I assume they are charged - or how are they keeping them in their "track"? No physical material could handle it. So they have to be charged, well the Synchrotron radiation generated would be enough to sterilize anything nearby. So "known physics" is a bit of a stretch.......... :)