A 140-foot space rock, Asteroid 2007 EG, will pass relatively close to Earth soon. Scientists say it’s harmless, yet they’re watching carefully. Why does this flyby matter for future asteroid defence? A 140-foot space rock, Asteroid 2007 EG, will pass relatively close to Earth soon. Scientists say it’s harmless, yet they’re watching carefully. Why does this flyby matter for future asteroid defence? Giant Airplane-Sized Asteroid Set to Sweep Past E... [787 chars]