diff --git a/punyverse/game.py b/punyverse/game.py
index 72ff54e..202d09f 100644
--- a/punyverse/game.py
+++ b/punyverse/game.py
@@ -159,9 +159,9 @@ class Applet(pyglet.window.Window):
             elif symbol == key.NUM_DIVIDE:
                 self.speed -= 10
             elif symbol == key.PAGEUP:
-                self.speed += 100
+                self.speed += 1000
             elif symbol == key.PAGEDOWN:
-                self.speed -= 100
+                self.speed -= 1000
             elif symbol == key.I:
                 self.info = not self.info
             elif symbol == key.D:
diff --git a/punyverse/texture.py b/punyverse/texture.py
index 48b22e0..db64fd1 100644
--- a/punyverse/texture.py
+++ b/punyverse/texture.py
@@ -213,7 +213,7 @@ def load_texture(file):
     filter = GL_NEAREST if badcard else GL_LINEAR
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter)
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter)
-    glTexImage2D(GL_TEXTURE_2D, 0, mode, width, height, 0, mode2, GL_UNSIGNED_BYTE, texture)
+    gluBuild2DMipmaps(GL_TEXTURE_2D, len(raw.format), width, height, mode2, GL_UNSIGNED_BYTE, texture)
 
     cache[file] = id
 
diff --git a/punyverse/world.json b/punyverse/world.json
index c11a798..ffcdb13 100644
--- a/punyverse/world.json
+++ b/punyverse/world.json
@@ -1,9 +1,10 @@
 {
+  "au": 10000,
   "planets": {
     "earth": {
       "texture": ["earth.jpg", "earth_medium.jpg", "earth_small.jpg", [0, 0.28, 1, 1]],
       "radius": 100,
-      "z": "2 * AU",
+      "z": "AU",
       "pitch": -90,
       "yaw": 23.4,
       "roll": -90,
@@ -15,8 +16,8 @@
       "satellites": {
         "moon": {
           "texture": ["moon.jpg", "moon_medium.jpg", "moon_small.jpg", [0.53, 0.53, 0.53, 1]],
-          "radius": 25,
-          "distance": 200,
+          "radius": 27.25,
+          "distance": 603.357,
           "orbit_speed": 1,
           "eccentricity": 0.0549,
           "inclination": 5.145,
@@ -25,41 +26,42 @@
         },
         "iss": {
           "model": "satellites/iss.obj",
+          "inclination": 51.65,
           "distance": 110,
-          "scale": 10
+          "scale": 5
         }
       }
     },
     "mars": {
       "texture": ["mars.jpg", "mars_small.jpg", "mars_medium.jpg", [0.85, 0.47, 0.2, 1]],
-      "radius": 80,
-      "z": "4 * AU",
+      "radius": 53.3,
+      "z": "1.524 * AU",
       "pitch": -90,
       "yaw": 25.19
     },
     "jupiter": {
       "texture": ["jupiter.jpg", "jupiter_medium.jpg", "jupiter_small.jpg", [0.65, 0.36, 0.19, 1]],
-      "radius": 150,
-      "z": "6 * AU",
+      "radius": 1120,
+      "z": "5.2 * AU",
       "pitch": -90,
       "yaw": 3.13
     },
     "saturn": {
       "texture": ["saturn.jpg", "saturn_medium.jpg", "saturn_small.jpg", [0.9, 0.8, 0.64, 1]],
-      "radius": 140,
-      "z": "8 * AU",
+      "radius": 945,
+      "z": "9.58 * AU",
       "pitch": -90,
       "yaw": 26.73,
       "ring": {
         "texture": "ring_saturn.png",
-        "distance": 200,
-        "size": 150
+        "distance": 1169,
+        "size": 2247
       }
     },
     "uranus": {
       "texture": ["uranus.jpg", [0, 0.53, 0.84, 1]],
-      "radius": 130,
-      "z": "10 * AU",
+      "radius": 400,
+      "z": "19.23 * AU",
       "pitch": -90,
       "yaw": 97.77,
       "ring": {
@@ -67,14 +69,14 @@
         "pitch": 0,
         "yaw": 0,
         "roll": 90,
-        "distance": 200,
-        "size": 100
+        "distance": 421,
+        "size": 781
       }
     },
     "neptune": {
       "texture": ["neptune.jpg", [0.31, 0.49, 0.59, 1]],
-      "radius": 120,
-      "z": "12 * AU",
+      "radius": 388,
+      "z": "30.5 * AU",
       "pitch": -90,
       "yaw": 28.32
     },
@@ -91,7 +93,7 @@
     }
   },
   "start": {
-    "z": "2 * AU - 400",
+    "z": "AU - 400",
     "yaw": 180
   }
 }
\ No newline at end of file
diff --git a/punyverse/world.py b/punyverse/world.py
index 4346abf..e684059 100644
--- a/punyverse/world.py
+++ b/punyverse/world.py
@@ -61,7 +61,7 @@ def load_world(file):
         root = json.load(f, object_pairs_hook=OrderedDict)
 
         world = World()
-        e = lambda x: eval(str(x), {'__builtins__': None}, {'AU': AU})
+        e = lambda x: eval(str(x), {'__builtins__': None}, {'AU': root.get('au', 2000)})
 
         if 'start' in root:
             info = root['start']