Create a new document what ever size you want the background for. Select the gradient tool, set your foreground color to #5b5e63 and your background to black. On the gradient toolbar at the top select "reflected gradient".
Drag the gradient across your canvas.
Create a new document 4x4 pixels and create this pattern using these 3 colors.
Once the pattern is created, head back to your wallpaper, create a new layer above your background layer, label this pattern. Fill this layer with your pattern. Add a layer mask and drag a black reflected gradient over the top. Your pattern should look like this.
Create a new layer above your pattern and background layer, select the rounded marquee tool and draw out a circle in the middle of your canvas. Fill the circle with a color of your choice, then add this layer style.
Duplicate the layer you just created then right click it and goto clear styles, you should now have a blank circle. Fill the blank circle with the color #3d6d9c.
Select the paint brush tool with a brush size of 100 soft, set the mode to linear dodge and flow to 60%.
Click you layer with the blue circle on whilst hold the CTRL key on the keyboard to make a selection, then with your brush just color the bottom end of your orb.
Then with a smaller brush size add a little circle.
Now add these layer styles.
Now select the rounded marquee tool and draw a circle in the middle of your orb fill this with the color white.
Add a layer mask and drag a black linear gradient over the top.
Do the same again add a circle at the top.
Select the rounded marquee tool again and on a new layer create another circle, only this time goto "select > modify > contract" and contract the circle by about 25-20 pixels. Then hit the delete key, this will turn the circle into a ring.
Add these layer styles to the ring.
Repeat the steps above only this time make a ring and add these layer styles instead.
You should have something like this.
Select the pen tool and create a shape like this.
Add these layer styles to your shape.
Duplicate this layer 3 times so you have a total of 4 shapes, Position them like the image below. (use flip tool).
Now last but not least, add a layer mask and drag a reflected gradient over them.
