Ideas for an Asteroid entering the Earth's atmosphere.

I have the Asteroid done, I will add the smoke trail behind it later, but how do I have the front be on fire and how do i make it look like it’s entering Earth’s atmosphere? Need the ideas as soon as I can.

have an inflow object in front of of the asteroid and make the asteroid an obstacle object. Bake first then animate the location because blender doesn’t support moving obstacles yet

What is tht gonna do?

I did something similar as a test:
http://postimg.com/71000/photo-70468.jpg

Here’s the setup:
http://postimg.com/71000/photo-70469.jpg

Smoke simulation with fast dissolving smoke + wind and turbulence force fields to simulate speed.