Hey wanted to discuss how hot can she get ? This topic has been brought up many times. Well I believe it was # 1 in her 1-4 series that on the cover she was melting a phone. She can also melt bullets -
She also exploded Emma's training base. That's more of her explosive power. Anyone else got a scan of how hot she can make her waves ?
 

" hot enough to burn off the earth's atmosphere so powerful she powered a Shi'ar space ship "

"
she didn't, but it's been stated before 
from Marvel.com..... 
"Firestar's mastery of microwave energy allows her to generate near-limitless amounts of heat and enables her to fly with enough thrust to carry huge weights aloft. Microwave manipulation, thermal energy blasts " 
from wikipedia.... 
"The nature of Firestar's power grants her the capacity for large-scale destruction. However, she typically limits how much of her own power she accesses for fear of permanently damaging the planet, its atmosphere and electromagnetic field. In space, she is far less inhibited, and can access greater levels of ambient electromagnetic energy to fuel her powers. She easily produced an attack that injured Garthan Saal when he possessed the energy of the entire Nova Corps, and also used her enhanced abilities to power a massive Shi'ar interstellar transport gate with very little effort" "

" no worries Firestar is one of my all time favorites she's even on my list of Most Underrated women in comics "

" I figured as much ; ) "