Make a new document, 1000x1000 pixels, black background.
Now add a mud texture in your document, like mine or close.
Hit CTRL+I (Command+I on Macintosh) to inverse the colors. You'll see later that this will add more realism to the effect.
Using the elliptical marquee tool, draw a perfect circular selection, Inverse selection and delete the unwanted texture. Your image should look like the example below:
Go to Filter>Distort>Spherize and choose a value of 100%. Go again and reapply the filter, but this time with a value of 50%. Your image should turn into this:
Go to layer>flatten image. Now you should have only one layer. Deselect and go to Filter->Distort->Polar Coordinates. Options: Polar to Rectangular. Your image should look like this:
Image->Rotate Canvas->90CW. Apply: Filter->Stylize->Wind Method: Wind. Direction: From the right. Hit CTRL+F to reapply.
Go to: Image->Rotate Canvas->90CCW. Finally, apply Filter->Distort->Polar Coordinates. Options: Rectangular to Polar.
There you go, now all you do is just play around with colors, by either using Image>Hue and Saturation, or Image> Color Balance. I use color balance in the image below.
Creating a Planet Explosion Tutorial: Final Result
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Subject: Planet explosion 
Wed Jun 18, 2008 6:41 am
