At some point they talk about possibility to send (using antimatter as propellant) a space mission to solar gravity lens focus, using it as a giant telescope to observe exoplanets.
Since this solar focus is quite far ( 550 UA )
Is gravitational light bending capability of the earth enough to think of a smaller mission to earth gravity lens focus? How far would this focus be? And how magnifying this virtual lens would be? What about other planets focii in the solar system?