How do flat Earthers explain the existence of other spherical planets?

Read also:

• In the TV show Supernatural, why is God portrayed as cruel?
• When have you been in an accident where the other person involved blatantly lied to the police about what transpired?
• From 1 to 10, how dark is the Naruto fandom? Why?
• Redefining physics to roll a ball vertically - Phys.org
• Common herbal supplement linked to deadly liver disease - Times of India
• Mets and Dodgers are more than living up to heavyweight billing - New York Post
• Circle IPO soars, giving hope to more startups waiting to go public - TechCrunch
• Is it wrong of me to feel uncomfortable that my friend thinks my brother is hot?
• Is there a correlation between being a medium and mental health?
• Why aren't U.S. prisons more like Marine Corps boot camp, were every second of the day there are mandatory activities so that at night everyone is so tired they go to sleep until wakeup at 5:30 am? Would this make prisons safer for all?
• Who is someone that inspires you?