Some scientists suggest that certain planets, like Earth and Mars, were once flat or disk-shaped during their early formation stages. This theory proposes that through processes like collisions or tidal forces, these flat disks eventually transformed into the spherical shapes we recognize today.

The concept challenges traditional ideas about planetary evolution and highlights the dynamic nature of celestial bodies. Further research and evidence gathering are necessary to better understand this hypothesis.

Overall, it’s a fascinating concept that adds another layer of complexity to our understanding of planet formation.