Which major astronomy organization's 2010 logo redesign sparked controversy but ultimately led to a 40% increase in public engagement and website traffic?

In the competitive world of astronomy technology and research organizations, branding plays a crucial role in establishing identity and recognition. One particular logo redesign in the astronomy sector created such controversy and public engagement that it actually increased public interest in space exploration by measurable metrics. Test your knowledge of this fascinating intersection of astronomy, design, and public perception!

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European Southern Observatory (ESO)
NASA (with the introduction of the 'meatball' logo's modern update)
International Astronomical Union (IAU)
Space Telescope Science Institute (STScI)