<span>It was the night of July 15, 1969 and, </span><span>at the age of 13, I found sleep </span><span>hard to come by. The </span><span>next day was the last day of school before the summer break, but th</span><span>is </span><span>was not the reason for my restless excitement. It was also my birthday, but this was secondary to the event that was keeping me awake</span><span>. July 16 </span><span>marked the </span><span>beginning of mankind's greatest adventure. It was the day</span><span> </span><span>Apollo 11</span><span><em> </em></span><span>lifted</span><span> </span><span>off, taking </span><span>human beings to the Moon for the first time.</span> <span>In my bedroom was a wall chart </span><span>and a cardboard model of the </span><span><em>Saturn V </em></span><span>rocket that could be reconfigured for the various stages of the mission, such as</span><span> the unlocking of the lunar module in Earth's orbit</span><span> and the descent to the Moon's surface</span><span>. By the time the astronauts returned home on </span><span>July 24, all that </span><span>was left of my model of th</span><span>e 111-metre rocket</span><span> was a tiny grey triangle of card.</span> <span>I watched </span><span>the launch on </span><span>our living room TV via a flickering black</span><span>-and</span><span>-white satellite transmission from Florida. Even without colour, the lift-off of </span><span><em>Saturn V </em></span><span>was an astonishing thing</span><span>, from the thunder of fire and noise from the engines</span><span> to </span><span>the slow rise of the huge steel column amid a shower of </span><span>ice caused </span><span>by condensation frozen by </span><span>the rocket's liquid oxygen and hydrogen fuel. </span> <span>I also remember the giant letters sliding past the launch pad camera: U, S, A.</span> <span>There was no thought of failure, at least in my </span><span>mind, as I manipulated my cardboard Apollo 11 over the </span><span>next few days</span><span>, only excitement, as the lunar module detached from the command ship </span><span><em>Columbia </em></span><span>to descend</span><span> to the Moon's surface. </span><span>Then there was the crackling message from 384,000 kilometres away, saying: "Houston. Tranquility Base here. The Eagle has landed."</span> <span>By that point it was nearly 10pm in London, where I lived at the time. My two younger brothers and I were sent to bed before Neil Armstrong</span><span> stepped on to the lunar surface.</span> <span>I've never quite understood, even if it </span><span>happened at 3am, why we were not allowed to watch live. Perhaps</span><span> my parents felt they were being responsible, </span><span>or they feared</span><span> something might go wrong, that Armstrong and Aldrin</span><span> could die on their mission and that </span><span>was something </span><span>children should not see.</span> <span>Instead, I watched those first steps, almost </span><span>indiscernible through the static, replayed over and over later that day. </span><span>Across the world, millions </span><span>watched it live, massive crowds were glued to </span><span>screens in London</span><span> and other cities, awestruck as science fiction became fact. </span> <span>The first men on the Moon spent less than a day there. Memory can play tricks</span><span> and I have a recollection of dramatic footage of the upper stage of </span><span><em>Eagle</em></span><span> leaving the Moon from a camera left behind on the surface</span><span>. </span><span>But I now think </span><span>that </span><span>was actually a memory of a later lunar mission, probably Apollo 15. Instead, the</span><span> departure of </span><span><em>Eagle</em></span><span> and its astronauts from the Moon's surface was filmed from inside the ship, the lunar surface receding as the tiny capsule rose back into space to rendezvous with the </span><span>main ship. </span> <span>We then awaited news </span><span>that Apollo 11 had</span><span><em> </em></span><span>left lunar orbit, exhaling with relief when </span><span>its crew returned home. </span><span>There were more than three minutes </span><span>of tense radio silence </span><span>during their re-entry into Earth's atmosphere, </span><span>culminating in the wonderful sight of the scorched Apollo 11 capsule – my little cardboard triangle – dangling safely </span><span>beneath its three parachutes. The three </span><span>astronauts on board, including Michael Collins, the command module pilot, were </span><span>quarantined for 21 days as a precaution against Moon bugs that turned out not to exist.</span> <strong>A photo gallery of the moon landings in 1969:</strong> <span>Half a century later, it still seems extraordinary that they succeeded in their mission. We know now how close they came to disaster,</span><span> when the </span><span>guidance computer on </span><span><em>Eagle, </em></span><span>a cutting-edge design at the time that used silicon chips instead of vacuum tubes, </span><span>crashed several times </span><span>during the descent to the Moon's surface, </span><span>with the computer being restarted </span><span>only 40 seconds before landing.</span> <span>It was unclear </span><span>at the time if the lunar surface could even support the weight of the ladder. </span><span>The engine </span><span>used to take </span><span><em>Eagle </em></span><span>off the surface was also untested in that environment. Any one of a dozen potential scenarios could have left Neil Armstrong and Buzz Aldrin stranded</span><span>.</span> <span>Nasa was rightly concerned. It</span><span> prepared a speech in advance for </span><span>US </span><span>president at the time, Richard Nixon, </span><span>should the astronauts have died. It read: "Fate has ordained that the men who went to the </span><span>Moon to explore in peace, will stay on the </span><span>Moon to rest in peace."</span> <span>I have read that Armstrong placed the odds of coming home alive at 90 per cent, but </span><span>thought the chance of a successful Moon landing</span><span> was only </span><span>50 per cent. </span> <span>Aldrin thought the likelihood they would die was one in three and believed </span><span>they would likely fail. </span> <span>They went on the mission anyway, and </span><span>returned as heroes</span><span>. It was the most astonishing achievement by the bravest men I can think of in all my lifetime.</span>