NO, EARTH IS NOT FLAT.
Here's your proof
Lately, as flat-Earth theorists have become more vocal, it seems as though people are more frequently asking questions of that very nature, and the movement is gaining ground. (Just this week, a flat-earth believer launched himself into space in a homemade rocket in an effort to disprove the round-Earth theory.) These questions go against every logical explanation of what we know to be true about our planet: mainly, that it is sphere-shaped and orbits the sun.
The rise in visibility of flat-Earth theories might be a product of what's rapidly becoming known as the "post-fact/post-truth era" in our society, in which an untruth repeated enough times becomes truth by groupthink. However, these theories existed long before the 2016 election cycle and have outlasted counterarguments from Aristotle, Ferdinand Magellan, NASA, and most rational-thinking humans.
Too often, the discourse about the shape of Earth becomes about proving negatives and centers on explaining that something isn't true rather than proving that it is. Indeed, the burden should be on flat-Earth theorists to explain clearly why their theories are correct and to use science to back those claims.
Fortunately, for every idea on why Earth might be flat, there is physical evidence that proves Earth is definitely globular. Here's a bunch of that evidence, and you don't even need to spend $1 million to launch yourself into space.