NASA invents explanation for recent fireball cluster: It's 'fireball season'

Yes, they noticed a string of bright fireballs in February last year, so they invented the term 'February Fireballs.' 

But then bright fireballs continued to appear so they called the next cluster the 'April Fireballs', and so on. 

They won't just come straight out and tell you that fireballs are increasing all the time .... http://www.sott.net