The Planet Exploration Vehicle (PEV), Model DX81-73 is a masterpiece of Space Engineering. Now you can explore all types of solid and liquid surfaces on rocky Planets and Moons.
The antigravity units are an integral part of the spaceship and work with Newtonium. The entire bottom of the vessel and the floors are equipped with them.
A Probe is a small Satellite that is able to completely scan an entire extrasolar Star System. It is equipped with an Interstellar Drive and an advanced Sensor Array.
A Molten Planet is a type of terrestrial planet, with a surface mostly or entirely covered by molten lava. Molten planets would probably orbit extremely close to their parent star.