Haumea is another new dwarf planet. Named after the Hawaiian goddess of fertility, in keeping with the tradition of naming planets and moons after characters in mythology. Haumea has an unusual shape and two moons.
A lot has changed since My Very Educated Mother Just Served Us Nine Pizzas (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto). Pluto was downgraded to a dwarf planet, and three other dwarf planets (all having moons themselves) have been added to the solar system.
This is really remarkable. Based on the principle of the Higgs field (that mass is not constant) what might seem like an impossible Rube-Goldberg machine is, in fact, a real possibility for thrust without the messy rocket exhaust. You can read Mr. Woodward's ideas in great detail in his book "Making Starships and Stargates" from Springer publishing.
The video below shows a scale model example of what is being talked about. If mass fluctuates, you can push in one direction when the mass is low (increasing velocity cheaply). Then the system can "relax" when mass is high (not decreasing velocity very much). A small net velocity remains. Repeat, slowly adding velocity by increments.
Conductors exposed to an approaching magnetic object naturally develop internal magnetic fields opposing that motion. Like a science-fiction force field that only applies to magic objects.