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

Read also:

• Have you been arrested or investigated?
• Why am I more attracted to black men?
• Why cant I add weight to my lifts even though im completing my sets? Every time I try to add more weight I cant even complete one rep.
• Why am I so jealous towards couples? Why am I tired of being single and feel my life is over?
• Why do almost all the girls on Quora look beautiful?
• Why is my ex still keeping in touch with me even though she dumped me?
• What are some tips for making your husband fall madly in love with you again after going through the worst phase of your marriage?
• How often do you watch the news on TV?
• Are you afraid to get married and why?
• Why am I dreaming of people I've never seen before?
• What is your favorite cuckold experience?
• Would Donald Trump's reelection make the world more dangerous?
• Do you think that drug addiction is a symptom of larger societal ills? What is it about our culture that leaves so many feeling like they're inadequate, trying any ill to find a cure?
• What was the weakest period in US history in terms of military strength? Was it during World War II or the Vietnam War?
• Has anyone ever read The Holy Bible completely through? If so, what was your overall impression of it?