Correct if there's only a ship and no disc there. As written at the Top of page 9 in the English book.
Thanks for the answer :-)
In the English book, it says:
(When you choose a space)
Choose one of the unexplored spaces next to a hex where you have a Ship or an In uence Disc and turn a hex tile from the corresponding stack (I, II or III) in it. If you Explore from a hex with only a Ship, it must not be "pinned
" (see Move on page 14).
(But when you place the hex tile)
• the hex can be placed only to the spot that you explored
• the hex must be oriented so that at least one of the Wormholes on the hex connects with a Wormhole on one of the hexes where you have a disc or a Ship (not be pinned too?)