If space is real in the sense that you think it is, then it would make the most sense that gravity would pull and condense everything into spheres.

There is however, no reason to believe that space is what the propaganda says it is.... Most religions talk about there being water above us which is why if the heavens open up the earth gets flooded with water.

A beautiful thought is that if the earth is just a cell in a larger body, then it would make sense that space would be liquid like our blood that pushes living cells around.

But your question wasn't about space, it was about the shape of the earth. To answer your question about why NASA is lying, most likely the earth is round, but there may be extra land that "they" don't want you to know about. Just like admiral Byrd said.

I can't prove what I am about to say, but I really believe the earth's atmosphere is much bigger than we are led to believe. I think that satellites are not in space, but still in our atmosphere. Most likely the earth's atmosphere extends to the moon as well. (And if you're talking about space anomalies the moon is a big one appears to have been brought here and hollow)

I don't know if the sun is in our atmosphere or not, but you should really consider that the atmosphere is much bigger then they say and when they tell you they are going into space they may not really be......

The moon appears round, the sun, the planets, I think it's plausible that the earth is round. The satellites are high up enough that they can take images of earth they are not lying about that. I think it would be too big of a lie to pull off faking all those pics and there is also live video feeds you can watch like from the space station.