Here's what fireballs are and how to best spot them at the Perseid meteor shower's peak

• Viewers of Saturday's Perseid meteor shower might see up to 100 "fireballs" per hour at its peak.
• Fireballs are different from other meteors — they're brighter and rarer, and can audibly "boom." 
• To best see them, move away from the city and let your eyes adapt to the night sky for half an hour.

For meteor shower enthusiasts, the chance to spot a fireball streak across the night sky is a real treat.