New Data Suggests Earth's Water Did Not Come From CometsData shows water is more likely to have been brought to Earth by asteroids when our planet was still very young.
NASA Releases Map Of Over 1,400 'Potentially Hazardous Asteroids' For EarthThere's no need to send Bruce Willis or Ben Affleck into space just yet - NASA released a new map showing the orbits of all known “Potentially Hazardous Asteroids.”

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