Last month a meteor did strike Russia, so the possibility of a similar event could evoke fear. Instead, following the trajectory of Friday's fireball became something of a community event across several states.
People snapped pictures and recorded video of the object -- which NASA said was as bright as a full moon and about a yard in diameter -- and uploaded them to the Web. Others, initially worried, were reassured by fellow onlookers that there was no cause for alarm. Such boulder-sized asteroids come into contact with the Earth about 100 times a year, but the phenomena are not usually observable.
Since the meteor, which ultimately landed in the Atlantic Ocean, was explained so quickly, excitement more than anxiety seemed to dominate. Web user @LAGilman tweeted: "That was either the lowest-flying meteorite I've ever seen, or a firefly with serious afterburners."
Should it happen again, just make sure you're looking up from cyberspace and into the sky.