This video from solar observer Starseeker shows an interesting magnetic anomaly interacting with a solar flare, pushing it back into the solar surface rather than allowing it to expand into space. First, the anomaly is not a planet (it would crash into the sun). It is most unlikely that it is a manufactured object of any sort, because it would be the size of Jupiter, which is 120 times as big as Earth. It must be some sort of magnetic effect that is not often observed. What significance it may have we don't know.