black holes
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The Most Astonishing Thing
The most astonishing thing about the universe, in my eyes, Is not merely its gargantuan, unfathomable size, But the way its vastness ferries gorgeous, primordial light, So that as we look up into the night, The farther afield our gaze penetrates, the higher we climb, The farther we can see back in time.
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Black Holes
In most observed galaxy hearts, Massive black holes reside, Formed from dark-baryon parts, As huge stars collapse or collide.
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
