Tick another milestone in China’s naval modernization program. It has has landed a plane on an aircraft carrier for the first time. The defense ministry has published photographs of a couple of J-15 carrier-based fighter jets taking off and landing on the Liaoning during recent sea trials. Quite how recent is unclear, as the photos, though newly published, are undated. Xinhua news agency had reported in mid-October that photographs of just such an event were in existence, though it did not publish them. The new pictures show clear blue skies and sea as smooth as glass, suggesting a day earlier in the year rather than later.