Q: "What about the stars, sun and moon and other planets? Are they flat too? What are they made of?"
A: The sun and moon, each 32 miles in diameter, rotate at a height of 3,000 miles above sea level. As they are spotlights, they only illuminate certain places. This explains why there are nights and days on Earth. The stars are at a height of 3,100 miles above sea level, which is as far as from San Francisco to Boston. In the dark energy model,
the celestial bodies are spherical and are made of ordinary matter. These spheres are being held above the Earth by DE.
In the McIntyre model, the sun and the moon are metallic discs instead. These discs are being held above the Earth by photoelectric effect. See: Photoelectric Suspension Theory. The celestial bodies are also being suspended above the Earth by photoelectric effect in the Bishop model.
Also, in this thread
http://www.theflatearthsociety.org/forum/index.php?topic=44948.0, EnglshGentleman has clearly stated that the faq answered the question on FEer's views on shapes of other planets. So my original question still stands, how do you guys know that the other planets are indeed spherical?