Group 1 - The European Space Agency (ESA) successfully created a man-made solar eclipse using two satellites, showcasing advanced satellite formation flying capabilities and providing valuable data for studying the solar corona [1][2] - The project cost approximately $210 million and has successfully simulated solar eclipses 10 times, with the longest lasting 5 hours [2] - The satellites, named "Occulter" and "Coronagraph," maintained a distance of 150 meters during the simulation, achieving a positioning accuracy of less than 1 millimeter [1][2] Group 2 - The project aims to extend the total duration of totality to 6 hours during scientific observations starting in July, with an estimated 200 simulations planned over the next two years, averaging about two per week [2] - The data collected from these simulations will be significant, as natural solar eclipses occur only every 18 months and last only a few minutes [2]