WASHINGTON (Reuters) - The United States, Australia and Canada have voiced concerns to China over a test in space of a satellite-killing weapon last week, the White House said on Thursday. "The U.S. believes China's development and testing of such weapons is inconsistent with the spirit of cooperation that both countries aspire to in the civil space area," National Security Council spokesman Gordon Johndroe said. "We and other countries have expressed our concern regarding this action to the Chinese." Using a ground-based medium-range ballistic missile, the test knocked out an aging Chinese weather satellite about 537 miles above the earth...