<http://schema.org/description>
"&lt;p&gt;We overlooked an important anniversary in the history of technology yesterday. So we'll attempt to make amends by celebrating it a day late (call it a tardy birthday card of sorts). Thirty years ago yesterday, the Viking 1 spacecraft &lt;a href=\"http://www.nasa.gov/mission_pages/viking/index.html\" target=\"resource window\"&gt;touched down on the surface of Mars&lt;/a&gt;. The occasion marked the first space mission to land successfully on another planet. Even now, the achievement stands out as one of the major milestones of human exploration. &lt;/p&gt;\n\n&lt;p&gt;As it was a first, the landing of &lt;a href=\"http://en.wikipedia.org/wiki/Viking_1\" target=\"resource window\"&gt;Viking 1&lt;/a&gt; on the Chryse Planitia of Mars&amp;#x02014;which was incorrectly thought to &amp;hellip;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://spectrum.ieee.org/tech-talk/semiconductors/devices/thirty_years_on_mars>