In October 2017, astrobiologist Karen J. Meech got the call every astronomer waits for: NASA had spotted the very first visitor from another star system. The interstellar comet -- a half-mile-long object eventually named `Oumuamua, from the Hawaiian for "scout" or "messenger" -- raised intriguing questions: Was it a chunk of rocky debris from a new star system, shredded material from a supernova explosion, evidence of alien technology or something else altogether? In this riveting talk, Meech tells the story of how her team raced against the clock to find answers about this unexpected gift from afar. This talk was presented at an official TED conference Astronomy 

Oumuamua: Asteroid from Another Star System

In October 2017, astrobiologist Karen J. Meech got the call every astronomer waits for: NASA had spotted the very first visitor from another star system. The interstellar comet — a half-mile-long object eventually named `Oumuamua, from the Hawaiian for “scout” or “messenger” — raised intriguing questions: Was it a chunk of rocky debris from a new star system, shredded material from a supernova explosion, evidence of alien technology or something else altogether? In this riveting talk, Meech tells the story of how her team raced against the clock to find…

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Astronomy What We're Reading 

What We’re Reading: Asteroid Hunters

Asteroid Hunters by Carrie Nugent Shared by Steven Spence for GotScience.org, a Science Connected publication Published by Simon and Schuster / TED Books On sale March 2017 Best for ages 12 and up   On any given day, about 90,000 kilograms of dust and small rocks hit the Earth. What happens when something larger is on a collision course with Earth? You may remember February 15, 2013 as the day when a small, rocky asteroid 20 meters in diameter exploded due to air pressure and heat at an altitude of 38 km. The event was…

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