"The candidate planetary system, detected with the microlensingmethod, is thought to move at least 1.2 million mph.
In MOA-2011-BLG-262, microlensing signals revealed a pair of celestial bodies.
The astronomers determined their relative masses (one is about 2,300 times heavier than the other), but their exact masses depend on how far away they are from Earth. Its true speed may even be high enough to exceed the Galaxy’s escape velocity of 600 km per second 1.3 million mph."
SciNews