#MESSENGER
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How Landing on the Moon Changed Our World
Lamont-Doherty Earth Observatory director Sean Solomon discusses how Apollo 11 affected the scientific community, how Lamont was involved, and what comes next for lunar exploration.
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MESSENGER Data Reveal That Mercury’s Inner Core Is Solid
The new findings offer clues about how the solar system formed and how rocky planets change over time.
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Exploring Mercury in a New Book
Scientists from NASA’s MESSENGER mission share some of its top discoveries — and lingering mysteries — in a new compendium.
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MESSENGER Data Reveal Evidence of Ancient Carbon-Rich Crust on Mercury
Mercury’s dark surface is revealing intriguing new clues about the formation of the solar system, including evidence announced today that the planet closest to the Sun may have formed in part from carbon, a key component of life.
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MESSENGER
Alien orbits you plied, While we vicariously spied A distant globe …
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
