This thread is to consolidate all planet-busters in Marvel. I'm only including those .
Beta Ray Bill
Issue: Strombreaker: The Saga of Beta Ray Bill 3
Issue: Thanos 12
Issue: Silver Surfer Annual 7
Issue: Annihilation - Heralds of Galactus 1
Issue: Incredible Hulk 634
Issue: Silver Surfer vol 3 #9
NOTE: Not a planet destruction but a star's destruction and result in a black hole.
This is dedicated to those that didn't quite bust a planet technically but did something very impressive.
Issue: Thor God of Thunder 2 and 9
Deed: Mjolnir is said to be able to "shatter planets as easy as pebbles." Thor while fighting Gorr caused near by planets to crack.
Issue: Adam Legend of Blue Marvel #3
Deed: Nearly busted the moon in half by throwing his Congressional Medal of Honour.
Issue: Marvel Comics Presents 52
Deed: Busted up an asteroid twice the size of Earth.