Skimmers are small remotely piloted surface vehicles introduced in the Elite Dangerous: Horizons planetary landing feature. They hover slightly over the surface of the planet, but are not considered aircraft, as they don't gain much altitude. Since they are piloted remotely, players can neutralise them by destroying the base sending their command signals, or if they are sufficiently far from the base, any relay towers enabling communication with the base.
Skimmers were referred to as a class, meaning there may be variants, much like the planned SRV's.
It has not been stated if Skimmers will be able to be used by players, and have only been confirmed as an enemy. It has been stated that players may be able to scoop up skimmers which have no connection, for sale on the black market.