Something ExTrA over La Silla
Based on ESO La Silla Observatory, the three beehive-shaped domes hide 0.6-m telescopes called ExTrA (short for Exoplanets in Transits and their Atmospheres), which are from 2017 active instruments for study the structure and composition of Earth-sized worlds, and address some fundamental questions about planets in our Galaxy. The Galaxy we see just over the…
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