The Paranal solar ESPRESSO Telescope (PoET) achieved “first light” at the European Southern Observatory (ESO) Paranal Observatory in the Atacama Desert, Chile.
ESPRESSO stands for Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations.
PoET studies sunlight and starlight to improve the detection of exoplanets (planets outside the Solar System).
The telescope includes a 60-centimetre mirror for observing sunspots and selected solar regions.
“First light” means the first successful observation made by a telescope or scientific instrument.