"Are we alone?" has been a fundamental question since the dawn of civilization, and we have always been curious about the possibility of extraterrestrial life. Since the discovery of the first exoplanet, a hot Jupiter orbiting a sun-like star named 52 Peg, in 1995, the number of exoplanet detections has grown exponentially. To date, we have discovered over 5000 exoplanets, each with unique properties and characteristics that are often vastly different from our own planet. However, despite these great advancements, we have yet to discover another habitable Earth-sized planet orbiting a sun-like star - an Earth 2.0. The Earth 2.0 (ET) space mission has been designed to take advantage of a wide field, high precision photometer and a wide field microlensing telescope to monitor millions of stars in the Milky Way for detecting exoplanets. With the help of these technologies, ET is expected to detect approximately 30,000 new planets, including around 5000 Earth-sized planets, 10-20 Earth 2.0s, and approximately 40 free-floating Earth-mass planets. This data will allow us to accurately measure their occurrence rates and study their distribution and statistical properties. Additionally, the follow-up observations of some promising Earth 2.0s around very bright solar type stars may be able to detect biosignatures in their atmospheres. In this presentation, I will discuss the status of the project and new results from relevant research.
