Minecraft space station: a ball with a ring

This space station is a white ball 15 blocks across with a ring 25 blocks wide around the middle. It is 15 blocks tall and takes 1,062 blocks.

Time to build by hand: about 1–2 hours. You can take breaks: the guide saves your progress on this device.

What you need

Playing in Creative? You already have every block.

Start at layer 1 on the ground and go up. The build guide shows each layer from above, with the next blocks in yellow.

Layer	Blocks	Which blocks
Layer 1	21	21 White Concrete
Layer 2	48	48 White Concrete
Layer 3	28	28 White Concrete
Layer 4	32	32 White Concrete
Layer 5	36	36 White Concrete
Layer 6	40	40 White Concrete
Layer 7	204	164 Light Gray Concrete, 40 White Concrete
Layer 8	244	196 Light Gray Concrete, 8 Gray Concrete, 40 White Concrete
Layer 9	204	164 Light Gray Concrete, 40 White Concrete
Layer 10	40	40 White Concrete
Layer 11	36	36 Cyan Concrete
Layer 12	32	32 White Concrete
Layer 13	28	28 White Concrete
Layer 14	48	48 White Concrete
Layer 15	21	21 White Concrete

Get the blocks from the list above.
Pick a flat spot that is at least 25 by 25 blocks.
Press Start building. The guide shows one layer at a time. Put blocks on the yellow squares and press I placed them.
After each layer you get a little party. After the last one, you get a badge in My builds.

The ring and the ball touch only at the 4 spokes, so build the ball first, then the spokes, then the ring.
Build it high in the sky so it looks like it floats.