They are quite large though. If thats a procedural planet then you'll have to wait on Space Engineer or someone else who knows.
Earth and the other major worlds of the Solar system are covered by texture files included in the installation, and so are relatively low resolution. You can make them more detailed by downloading the texture addon packs that DoctorOfSpace mentioned, but these are very large and take up much disk space. Procedural planets (worlds outside of our Solar system) will be very detailed as you have probably seen in screenshots and are not affected by this.
Intel Core i7-5820K 4.2GHz 6-Core Processor G.Skill Ripjaws V Series 32GB (4 x 8GB) DDR4-2400 Memory EVGA GTX 980 Ti SC 6GB
Edited by DoctorOfSpace - Saturday, 14.07.2012, 21:53