===================================================================
--- original.js
+++ change.js
@@ -129,31 +129,53 @@
 });
 var Ship = Container.expand(function (x, y) {
 	var self = Container.call(this);
 	var shipGraphics = self.createAsset('ship', 'Ship asset', 0.35, 0.5);
+	var speed = 0;
 	;
+	self.update = update;
+	self.launch = launch;
 	self.x = x;
 	self.y = y;
-	self.direction = 0;
-	self.launch = launch;
+	self.direction = -1;
 	;
-	function launch(direction) {}
+	function update() {
+		if (self.direction < 0) {
+			self.x -= ROCKET_SPEED_REVERSE;
+			if (self.x <= self.parent.radius) {
+				self.x = self.parent.radius;
+				self.direction = 0;
+			}
+		} else if (self.direction > 0) {
+			speed += ROCKET_SPEED_BASE;
+			speed = Math.min(ROCKET_SPEED_MAX, speed * ROCKET_SPEED_MULTI);
+			self.x += speed;
+			if (self.x > ROCKET_DIST_LEAVE) {
+				self.direction = -1;
+				transitionPlanets();
+			}
+		}
+	}
+	function launch(direction) {
+		speed = 0;
+		self.direction = direction;
+	}
 });
 var Planet = Container.expand(function (x, y, radius, assetName) {
 	var self = Container.call(this);
 	var perimeter = MATH_2_PI * radius;
 	var numPlots = Math.floor(perimeter / (PLOT_SIZE + PLOT_GAP));
 	var numNodes = numPlots / 4;
 	var farms = [];
-	var ship = self.addChild(new Ship(radius, 0));
 	var planetGraphics = self.createAsset(assetName, assetName + ' asset', 0.5, 0.5);
 	planetGraphics.width = radius * 2;
 	planetGraphics.height = radius * 2;
 	;
 	self.update = update;
 	self.launch = launch;
 	self.x = x;
 	self.y = y;
+	self.radius = radius;
 	self.rotation = Math.random() * MATH_2_PI;
 	self.spin = 0;
 	;
 	function update(ticks) {
@@ -220,11 +242,16 @@
 	self.rotation = MATH_QUARTER_PI;
 	self.update = update;
 	;
 	function update() {
-		counter++;
-		var distance = CROSSHAIR_DIST + CROSSHAIR_VARIANCE * Math.sin(counter / CROSSHAIR_PERIOD);
-		setDistance(distance);
+		if (currentPlanet !== destinationPlanet) {
+			counter++;
+			var distance = CROSSHAIR_DIST + CROSSHAIR_VARIANCE * Math.sin(counter / CROSSHAIR_PERIOD);
+			setDistance(distance);
+		} else if (counter > 0) {
+			counter = 0;
+			setDistance(CROSSHAIR_DIST);
+		}
 	}
 	function setDistance(distance) {
 		for (var i = 0; i < arrows.length; i++) {
 			arrows[i].x = arrowOffsets[i].x * distance;
@@ -273,25 +300,23 @@
 	;
 	function buttonCallback(index) {
 		var button = buttons[index];
 		if (button.unlocked) {
-			// TODO: navigation
+			setDestination(index);
 		} else if (money >= button.cost) {
 			moneyDisplay.setAmount(money -= button.cost);
 			button.unlock();
 		}
 	}
-	self.setCurrent = setCurrent;
-	function setCurrent(index) {
-		for (var i = 0; i < buttons.length; i++) {
-			buttons[i].alpha = i === index ? 1 : 0.5;
+	self.setDestination = setDestination;
+	;
+	function setDestination(index) {
+		destinationPlanet = index;
+		if (currentPlanet !== destinationPlanet && ship.direction === 0) {
+			buttons[index].addChild(crosshair);
+			ship.launch(1);
 		}
 	}
-	;
-	function setCurrent(index) {
-		var button = buttons[index];
-		button.addChild(crosshair);
-	}
 	buttonCallback(0);
 });
 
 /**** 
@@ -320,13 +345,13 @@
 var PLANET_SPIN_RED = -0.0002;
 var PLANET_SPIN_BLUE = 0.001;
 var PLANET_SPIN_OMNI = 0.005;
 var ROCKET_DIST_REVERSE = 200;
-var ROCKET_DIST_LEAVE = 1200;
-var ROCKET_SPEED_BASE = 0.05;
-var ROCKET_SPEED_MULTI = 1.5;
+var ROCKET_DIST_LEAVE = GAME_HEIGHT / 2;
+var ROCKET_SPEED_BASE = 0.001;
+var ROCKET_SPEED_MULTI = 1.2;
 var ROCKET_SPEED_MAX = 30;
-var ROCKET_SPEED_REVERSE = 5;
+var ROCKET_SPEED_REVERSE = 2;
 var PLOT_SIZE = 100;
 var PLOT_GAP = 40;
 var TEXT_OFFSETS = [[0, 1], [MATH_HALF_ROOT_3, 0.5], [MATH_HALF_ROOT_3, -0.5], [0, -1], [-MATH_HALF_ROOT_3, -0.5], [-MATH_HALF_ROOT_3, 0.5], [0, 0]];
 var TEXT_BORDER_WEIGHT = 4;
@@ -335,32 +360,37 @@
 var TEXT_DEFAULT_FILL = '#FFFFFF';
 var TEXT_DEFAULT_BORDER = '#000000';
 var CURRENCY_DEFAULT_MARGIN = 0;
 var CROSSHAIR_DIST = 40;
-var CROSSHAIR_VARIANCE = 15;
-var CROSSHAIR_PERIOD = 2 * GAME_TICKS / MATH_2_PI;
+var CROSSHAIR_VARIANCE = 10;
+var CROSSHAIR_PERIOD = 1.25 * GAME_TICKS / MATH_2_PI;
 var NAVIGATION = [{
 	cost: 0,
+	"class": PlanetGrey,
 	planet: 'planetGrey',
 	description: 'Small moon, with no special bonuses.'
 }, {
 	cost: 100,
+	"class": PlanetRed,
 	planet: 'planetRed',
 	description: ''
 }, {
 	cost: 250,
+	"class": PlanetBlue,
 	planet: 'planetBlue',
 	description: ''
 }, {
 	cost: 800,
+	"class": PlanetOmni,
 	planet: 'planetOmni',
 	description: ''
 }];
 ;
 var money = 10000;
 var currentPlanet = 0;
 var destinationPlanet = currentPlanet;
 var planet = game.addChild(new PlanetGrey(GAME_WIDTH / 2, GAME_HEIGHT / 2));
+var ship = planet.addChild(new Ship(planet.radius + ROCKET_DIST_REVERSE, 0));
 var planets = [planet];
 var moneyDisplay = LK.gui.top.addChild(new CurrencyText(money, {
 	x: 20,
 	y: 50,
@@ -370,10 +400,20 @@
 	}
 }));
 var crosshair = new Crosshair();
 var navigation = LK.gui.bottom.addChild(new NavigationInterface(0, -100));
-navigation.setCurrent(currentPlanet);
+navigation.setDestination(0);
 ;
 LK.on('tick', function () {
+	ship.update();
 	planet.update();
 	crosshair.update();
-});
\ No newline at end of file
+});
+;
+function transitionPlanets() {
+	currentPlanet = destinationPlanet;
+	planet = planets[currentPlanet];
+	if (!planet) {
+		planet = planets[currentPlanet] = new NAVIGATION[currentPlanet]['class'](GAME_WIDTH / 2, GAME_HEIGHT / 2);
+	}
+	ship.x = planet.radius + ROCKET_DIST_REVERSE;
+}
\ No newline at end of file