Paul Contursi has his heart set on people going to Mars. For now, he will have to settle for the next best thing. On Aug. 27, Mars will swing nearer to Earth than it has been in almost 60,000 years, affording a rare, close-up peek at our colorful next-door neighbor. “Everybody with a telescope will be out that night, if the weather’s good,” said Contursi, president of the Mars Society of New York, half of whose 150 members are New Jerseyans.