Step 1
Start by creating a new image 300 X 300 with a black background.
Layers > New Raster Layer... > Ok
Select the Selection (S) and Selection type: Circle
Draw a large circle in the center of the image:

On the Materials palette, set your Foreground color to #082DD8
Use the Flood Fill Tool (F) and fill the layer:

Selections > Modify > Contract... > Number of pixels: 2 > Okay.
The purpose of this is to preserve a clean outline of our globe when the time comes to apply a Gaussian blur a bit later.
Selections > Load/Save Selection > Save Selection To Alpha Channel... > Save
Selections > Modify > Contract... > Number of pixels: 4 > Okay.
Now here's the semi-tricky part to this tutorial. It may take a bit of trial and error to get the look your trying to achieve.
Select the Move Tool (M) (Make sure that this is selected!)
On your keyboard, hit the Left Arrow Key two (2) times:
Now hit the Up Arrow Key two (2) times:

Hit DELETE on your keyboard. You should now have something like this:

Now that we have our main piece ready to go, we need to place the image back to it's original starting place.
On your keyboard, hit the Right Arrow Key two (2) times.
Now hit the Down Arrow Key two (2) times.
Selections > Load/Save Selection > Load Selection From Alpha Channel... > Load.
Adjust > Blur > Gaussian Blur > Radius: 4 > OK.
Selections > Select None.

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