Five reasons why we know the Earth is round
1 PHOTOGRAPHY FROM SPACE
Countless photographs taken by satellites, probes and from the ISS show our Earth as a beautiful globe, which is unarguably the greatest piece of evidence that the world is not flat.
2 LUNAR ECLIPSE SHADOWS
During a lunar eclipse, the Earth is placed between the Moon and Sun. The shadow cast by our Earth is visibly round as a result of its spherical shape.
3 DIFFERENT VISIBLE CONSTELLATIONS
From a flat Earth all the stars would look the same no matter where in the world you were standing, but this isn’t the case — different constellations can be seen in different parts of the globe.
4 WE CAN SEE FURTHER WITH ALTITUDE
The higher up you are the further you will see. This is a result of the Earth’s curvature. On a flat Earth, elevation would not make a difference and curvature would thereby not occur.
5 TIME ZONES
If Earth was flat the Sun’s light would be equally distributed everywhere; similar to placing a plate beneath a desk lamp. This would mean we wouldn’t have any time zones, or day and night.