High resolution spectroscopy plays a key role in the effort to detect and characterise other Earths. This objective remains challenged by astrophysical signals introduced from their host stars, severely challenging the detection and characterisation of exoplanets similar to our Earth. An analysis of our closest star, the Sun, might shed light into the origins of such signals. However, there is no instrumentation capable of analysing the contribution of each solar feature.

The Paranal solar ESPRESSO Telescope (PoET) will cover this gap, with its first light planned for 2025. It will connect to the ESPRESSO spectrograph (ESO-VLT), acquiring both disk-resolved and disk-integrated ("sun-as-a-star") observations of the Sun. This dataset will be obtained in the ultra-high resolution mode (R>200 000), covering the full optical domain (380-780 nm) in one single shot. In the behalf of the PoET team, I will present the instrument, its scientific goals and the observation strategy.