Shadows don't appear when using spotlight?

I apologize if this answer is obvious, but I'm a beginner in Unity and I couldn't find my answer on the other forums or on the internet anywhere. I have this space scene where I want a spotlight to rise. On the water is a monolith that I want to cast a hard shadow, but nothing happens. No shadow. I tried to enable a deferred path renderer but I think its already on? Not really sure. Again, I am a noob at this, so patience and kindness is much appreciated. Help?alt text