SO Colloquium: The Earth 2.0 (ET) Space Mission

The Earth 2.0 (ET) mission, currently in Phase B and scheduled for launch in fall 2028, aims to discover Earth-like exoplanets using a dedicated space observatory at the Earth-Sun L2 point. It will combine six wide-field transit telescopes and one microlensing telescope, leveraging large-format CMOS detectors for ultra-precise photometry. Over its four-year primary mission, ET will monitor ~3 million nearby dwarf stars for transits and ~30 million stars in the Galactic bulge for microlensing events. Simulations suggest the mission will detect ~17 Earth 2.0 analogs, ~25 free-floating Earth-mass planets, over 4000 terrestrial-like planets, and tens of thousands of additional exoplanets.

This talk will present an overview of the mission design, technical innovations, and its potential for exoplanet, stellar and time-domain sciences.

Fecha y lugar: 04/12/2025 – 12:30 | Salón de Actos
Jian Ge
Shanghai Astronomical Observatory