Meet NASA’s Planetary Defense Officer, the Man Responsible for Protecting Earth from Asteroids
Jan 14, 2016 The term planetary defense officer sounds like a high-ranking position in a cosmic task force from a Marvel comic book. But actually, this is a real job title for NASA's Planetary Defense Coordination Office or PDCO.
Scientists Warn Giant Comets from Jupiter Threaten Earth
Dec 25, 2015 A new study conducted by astronomers is urging space agencies to monitor cosmic objects near other planets in the solar system due to Earth's risk of getting hit by giant comets. According to them, our planet could experience showers of debris from comets that can last up to 100,000 years.