The surface of the sun is about 10,000 degrees Fahrenheit. No spacecraft or spacesuit could withstand these scorching temperatures.
The sun's gravitational pull is 28 times that of Earth's. This intense gravity would instantly crush and flatten the human body.
Without Earth's protective atmosphere, the sun's intense radiation would incinerate humans in seconds. Exposure would be instantly fatal.
The sun has no solid surface to land on. It's a gigantic ball of burning gases. Any spacecraft would melt before landing.
The Next Pandemic