Wolf 359 is a star located approximately 2.4 parsecs or 7.7 light years from Earth. Perhaps as an allusion to this episode, it was chosen by the Star Trek universe writers as the site of a famous Federation-Borg battle.
In one photo taken of the planet, a monster is shown rising from sand. It is the same monster used in the episode The Invisible Enemy (1964), which had been broadcast the week before.
Another photo is from the set used in the Season 2 episode 1 "Soldier". It's the battleground seen in the teaser.