NASA has publicly challenged five long-standing space myths, using data from missions such as IRIS and observations from astronauts including Alan Bean and Leroy Chiao. The agency's findings correct popular misconceptions about the sun, the Great Wall of China , and the density of the asteroid belt, among others. According to the source report, the debunking underscores both how far space science has come and how much remains unknown.

The Sun's True Nature: Nuclear Fusion, Not Fire – IRIS Measurements

NASA's Interface Region Imaging Spectrograph (IRIS) measured temperature levels across the sun's atmosphere, confirming that the sun is a ball of gas powered by nuclear fusion, not a ball of fire as the 1960s song suggests. The heat comes from radiation, not combustion, as the source report explains. However, as NASA notes, a mystery persists: parts of the sun's atmosphere are hotter than its surface, a phenomenon the IRIS project aims to resolve.

Why the Great Wall of China Remains Invisible to the Naked Eye from Space

During the Apollo 12 mission,NASA pilot Alan Bean reported that no man-made object, including the Great Wall of China, is visible from space at the scale of the Earth, according to the source. later, NASA commander Leroy Chiao took a photo from the International Space Station that some claimed showed the Wall, but it required high-powered cameras; the naked eye cannot see it unaided. The myth, which dates back centuries, persists despite repeated astronaut testimony to the contrary.

Asteroid Belt Reality: Hundreds of Thousands of Miles Between Rocks – Pioneer 10's Journey

Contrary to the dense asteroid fields depicted in films like Star Wars, the real asteroid belt between Mars and Jupiter contains vast stretches of empty space – hundreds of thousands of miles between kilometer-sized rocks. NASA's Pioneer 10 space probe, launched in 1972 (not 2003 as some versions claim), passed through the belt without any near-miss or damage, as the source report notes. The agency emphasizes that the risk of collision in the asteroid belt is extremely low.

A Warning from the Report: Privatization of Space Could 'Be Disastrous' for Science

The source report includes a stark assertion that privatization of space exploration 'could be disastrous for scientific progress in the coming generations .' While NASA itself did not make this claim,the article raises it as a concern alongside the myth-busting. The warning comes as private companies increasingly take on roles previously held by government agencies,though the report offers no specific evidence to support the claim.

The Corona Conundrum: Why the Sun's Atmosphere Is Hotter Than Its Surface

One of the most persistent solar mysteries that NASA is still working to solve is why the sun's corona – its outer atmosphere – is significantly hotter than the surface.. Intuitively , one would expect temperatures to drop with distance from the core, but IRIS measurements show the opposite. According to the source, NASA hopes to resolve this paradox in the coming years as the IRIS project continues its observations.