Because the vast majority of sunlight is reflected back towards the sun and the earth and smaller percentage is deflected laterally at an angle the astronaut and his camera are able to see. With less light deflected laterally, it would appear dimmer.
Guys just do your research Without prejudice please I am in hell of the physics But just a few hours of research, and i became a flat earther This is crazy But please visit my board. There is enough evidence
NIKOLA TESLA: "Earth is a realm, it is not a planet. It is not an object, therefore, it has no edge. Earth would be more easily defined as a system environment. Earth is also a machine, it is a Tesla coil. The sun and moon are powered wirelessly with the electromagnetic field (the Aether). This field also suspends the celestial spheres with electo-magnetic levitation. #FlatEarth #NikolaTesla
"Surface temperature is also influenced by wind patterns and areas of vegetation (.)" And also the Earth's tilt doesn't spin that means that different places get the 90 degree sunlight from day to day in a one year period.