2942 Pune, December 19 Two students from a school in Lohegaon in Pune have discovered six preliminary asteroids in the Kalam Centre Asteroid Search Campaign organized by Kalam Centre and the International Astronomical Search Collaboration (IASC). In a release issued on Saturday, the Vikhe Patil School said Arya Pulate and Shreya Waghmare discovered the asteroids, adding that all 22 participants in the campaign were selected after a rigorous screening process through a worldwide event organised between November 9 and December 3. They were selected from across the globe and trained to analyze data and spot potential asteroids close to Earth and 27 preliminary asteroid were discovered.