query: #defaultView:Timeline
  SELECT ?item ?itemLabel ?launchdate (SAMPLE(?image) AS ?image)
  WHERE
  {
  	?item wdt:P31 wd:Q26529 .
      ?item wdt:P619 ?launchdate .
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
      OPTIONAL { ?item wdt:P18 ?image }
  }
  GROUP BY ?item ?itemLabel ?launchdate