<!-- "Rocket Man" by Chris Gannon https://cdpn.io/EjVyXN -->

<svg id="motionPath" viewBox="-20 0 557 190">
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    <g fill="#FFF">
      <path d="M73.3 95.3a.7.7 0 1 1 1.4 0 .7.7 0 0 1-1.4 0z"/>
      <path d="M73.9 95.3c0-.663.045-1.2.1-1.2.055 0 .1.537.1 1.2 0 .663-.045 1.2-.1 1.2-.055 0-.1-.537-.1-1.2z"/>
      <path d="M72.7 95.3c0-.055.582-.1 1.3-.1.718 0 1.3.045 1.3.1 0 .055-.582.1-1.3.1-.718 0-1.3-.045-1.3-.1z"/>
    </g>
    <g fill="#FFF">
      <path d="M84.1 93.4a.7.7 0 1 1 1.4 0 .7.7 0 0 1-1.4 0z"/>
      <path d="M84.7 93.4c0-.663.045-1.2.1-1.2.055 0 .1.537.1 1.2 0 .663-.045 1.2-.1 1.2-.055 0-.1-.537-.1-1.2z"/>
      <path d="M83.5 93.4c0-.055.582-.1 1.3-.1.718 0 1.3.045 1.3.1 0 .055-.582.1-1.3.1-.718 0-1.3-.045-1.3-.1z"/>
    </g>
  </g>
</svg>
#motionPath {
  overflow: visible;
  height: 100%;
  max-width: 100%;
}

#motionPath path {
  stroke-width: 2;
  stroke: gray;
}

#motionPath .astronaut {
  visibility: hidden;
}
//register the plugin (just once)
gsap.registerPlugin(MotionPathPlugin);

gsap.set(".astronaut", {scale: 0.5, autoAlpha: 1});

gsap.to(".astronaut", {
  duration: 5, 
  ease: "power1.inOut",
  immediateRender: true,
  motionPath: {
    path: "#path",
    align: "#path",
    alignOrigin: [0.5, 0.5],
    autoRotate: 90
  }
});

MotionPathHelper.create(".astronaut");

External CSS

  1. https://codepen.io/GreenSock/pen/AHquG

External JavaScript

  1. https://s3-us-west-2.amazonaws.com/s.cdpn.io/16327/gsap-latest-beta.min.js
  2. https://s3-us-west-2.amazonaws.com/s.cdpn.io/16327/MotionPathPlugin.min.js
  3. https://s3-us-west-2.amazonaws.com/s.cdpn.io/16327/MotionPathHelper.min.js