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Asteroid 2012 DA14's Friday Flyby

Asteroid 2012 DA14's Friday Flyby

Talk about an eventful Friday night! Tomorrow night, a small asteroid will travel nearer Earth than any astronomers have identified beforehand. “It’s the closest that we’ve seen ahead of time,” says Denton S. Ebel, curator in the Division of Physical Sciences (Earth and Planetary Sciences).

For more about the asteroid flyby, participate in a live Twitter chat with Ebel, this Friday, February 15, at noon ETPost your questions here or use hashtag #asteroidchat on Twitter.

Tags: Space Exploration, Astrophysics

Vertical Farming: Growing Up, Not Out

Vertical Farming: Growing Up, Not Out

In the next few decades, the global human population will exceed 9 billion—and 70 percent will live in cities. How can hunger be addressed in this growing population? On Saturday, Februrary 2, speakers from Columbia University and the Sackler Institute for Nutrition Science will present and lead discussions on this topic, and more, in a day of learning; one topic will be vertical farming.

Tags: Our Global Kitchen

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