Here’s a tutorial on how to make your own deep space scene with planet, demonstrated in Photoshop Elements 11 and applicable for all versions
On a canvas filled with black, add a new layer and use the Rectangular Marquee tool (M) to create a small square. Change the Foreground colour to #391184 and the Background colour to #000000. Open Filter>Render>Clouds and apply the effect. Hold Cmd/Ctrl+T and scale up the layer.
Create a new layer. Change the Foreground color to white. Click on Brush tool (B) and select a soft brush. Open the Brush Settings and change Scatter to 80% and Spacing to 100%-1000% (depends on resolution of canvas). Draw the stars varying the brush size each time (if they appear faint, duplicate the layer by pressing Cmd/Ctrl+J multiple times to strength them up). Then Merge them using Cmd/Ctrl+E.
Using the Elliptical Marquee tool, change the Feather to 5 pixels and create a perfect circle holding Shift. Click on the Gradient tool (G) and open the Gradient Editor. Create three colour stops of black, orange and white, and apply the gradient with the Radial option selected. Keep the circle selected.
Create another layer, use the default black and white colours (D), click on Filter>Render>Clouds. Open Filter>Blur>Motion Blur and change the Distance to 999 pixels. Hit OK and set the layer’s blend mode to Multiply. Merge all Layers and apply Filter>Render>Lens Flare.
The above tutorial features in Photoshop Creative’s Q&A pages in Issue 95, on sale now!