1998 Saturn SC2 Car won't start

battery is 10 month old. after driving 25 miles at 10 o'clock at night, i was one mile away from the house, when first my radio went off, my headlights dim very low, engine lights came on, battery lights came on,. I just made it to the driveway, i turned off the engine; when i tried to restart, i hear a clicking sound, the car won't start. Could it be my alternator have gone bad?