Which famous observatory's logo features a stylized representation of light being reflected by the three mirrors in its optical system, forming a distinctive triangular design?

Test your knowledge of astronomy brand design! Many major observatories and space agencies have distinctive logos that represent their mission and cosmic focus. These visual identities often incorporate celestial symbols, telescope designs, or abstract representations of space phenomena. How well do you recognize the thoughtful design elements that went into creating these iconic astronomical brands?

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W. M. Keck Observatory
Hubble Space Telescope Institute
European Southern Observatory (ESO)
Atacama Large Millimeter Array (ALMA)