Is the Detroit station safe? s it close to light rail or sight?s?
During the day, yes (but be smart about it). You can catch the Q Line (light rail) from the station.
As for nearby sights, you have the Motown Museum, Fisher Building, Wayne State University's campus, Detroit History Museum, Detroit Institute of Arts, and some other museums.
Parts of Detroit are walkable, but I would recommend Uber or Lyft to get around if you aren't familiar with the area. Your safety can change block by block sometimes. Detroit is undergoing an amazing revitalization, but there are still some sketchy pockets in the midst of that change.