Science works. You and I can tell. The intrepid space vehicle Curiosity lands on Mars after those seven minutes of terror and promptly goes roaming for samples. Rosetta, another long distance space shot, does some cosmic loops around planets, pulls up beside a comet and then lands its own little explorer – which sent back evidence of rare organic molecules in the ice. New Horizons flew by Pluto last month after nine years and five billion kilometres and took immaculate pictures for us. What triumphs!