I would think that as asteroids crash into gaseous planets they would first melt and solidify but as they are pushed further down and pressure and gravity has its way, would they not become solid and form a core? I know we do not have a way to pear that far into planets like Saturn and Neptune but wouldn't it make sense?

seriously dude? have you never heard of google

https://www.google.com/search?q=Do+Gas+Planets+Have+Rocky+Cores&sugexp=chrome,mod=18&sourceid=chrome&ie=UTF-8

is there any reason for a science forum if you're just going to post that every thread?

seriously dude have u ever heard of an original signature?
also thanks for posting OP this and bringing the good question to light, thats what these forums are for, now people will think to look this up

We usually discuss NEW stuff around here, or uncertain stuff, or our own ideas of something.
We dont waste forum bytes with "1+1=2" questions.

Being honest.

The chance of you coming up with a completely original question is highly unlikely

"why do we die" - omghacks2

google gives 572,000,000 results for that question. Do you really consider it to be your "own idea" and "NEW"?