World Prepares for 'Most Massive' Meteor Shower
If you want to get the best view of the spectacular shower then experts advise getting away from the artificial light of towns and cities.
Nasa astronomer Bill Cooke said: "Of all the debris streams Earth passes through every year, the Geminids' is by the far the most massive."
A meteoroid is a small rocky or metallic body travelling through space.
Usually they are fragments from comets or asteroids.
Around 15,000 tonnes of meteoroids and other forms of space dust enter Earth's atmosphere each year.