Which color scheme is prominently featured in the official logo of the European Southern Observatory (ESO), operator of the Very Large Telescope?

The world of astronomy isn't just about stars and planets—it's also about the organizations and brands that help us explore the cosmos. Major observatories and space agencies have developed distinctive visual identities that astronomy enthusiasts recognize worldwide. This trivia question tests your knowledge about the branding of one of astronomy's most significant research facilities. Do you recognize the iconic logos that represent humanity's quest to understand the universe?

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Blue and white (representing the sky and stars)
Blue and yellow (representing the European Union flag colors)
Red and black (representing the heat signature of distant stars)
Green and purple (representing visible and infrared light spectrums)