diff --git a/sim_scenes/science/jupiter_rocks.py b/sim_scenes/science/jupiter_rocks.py
index ff9239d1b54880b95c9d1c3754fcaa066cfce71e..f2ea1632ddb4078550e971dd0ee0a0cefb6f8817 100644
--- a/sim_scenes/science/jupiter_rocks.py
+++ b/sim_scenes/science/jupiter_rocks.py
@@ -22,7 +22,8 @@ if __name__ == '__main__':
 
     # 木星在中心位置
     jupiter = Jupiter(init_position=[0, 0, 0], init_velocity=[0, 0, 0],
-                      rotation_speed=0, size_scale=1)
+                      # rotation_speed=0,
+                      size_scale=1)
 
     bodies = [jupiter]
     rocks = []
diff --git a/simulators/ursina_simulator.py b/simulators/ursina_simulator.py
index 390c010b4fcf331c40e58d8a91ed234627e4342a..badc0caa9398abd3f088773357e1c817244fe7a9 100644
--- a/simulators/ursina_simulator.py
+++ b/simulators/ursina_simulator.py
@@ -97,7 +97,7 @@ class UrsinaSimulator(Simulator):
                 explosion_file = os.path.join(explosion_file, "explosion")
                 # volume = body.planet.model.volume
                 volume = pow(body.planet.model.get_bounds().volume, 1 / 3) / 2000
-                ani = Animation(explosion_file,
+                explode_ani = Animation(explosion_file,
                           position=body.planet.position,
                           scale=volume * 2, fps=6,
                           loop=False, autoplay=True)
@@ -105,11 +105,15 @@ class UrsinaSimulator(Simulator):
                 if target is not None:
                     if hasattr(target, "planet"):
                         if hasattr(target.planet, "main_entity"):
-                            ani.look_at(target.planet.main_entity)
+                            explode_ani.world_parent = target.planet.main_entity
+                            explode_ani.look_at(target.planet.main_entity)
                         else:
-                            ani.look_at(target.planet)
+                            explode_ani.world_parent = target.planet
+                            explode_ani.look_at(target.planet)
                     else:
-                        ani.look_at(target)
+                        explode_ani.world_parent = target
+                        explode_ani.look_at(target)
+                return explode_ani
 
         body.look_at = body_look_at
         body.set_visible = body_visible