// resolving the promise
flyToTheMoon.then((asyncResult) => { // then if it was successful
  return asyncResult;
})
.then((asyncResult) => { // but we need to make a second async call with the result of the first
  if (asyncResult.needsMoreData) {
    return moreTakeOffData();
  }
})
.then((moreData) => { // and another async call
  return startEngine.start(moreData);
})
.then((takeoff) => { // and another
  // welcome to Promise-Land
})
.catch((error) => {
  console.log('Damn errors');
});