image of this article category

A former astronaut claims a SHOCKING space fact! The sun is NOT YELLOW!

16.09.2022 12:30 PM
Latest
A former astronaut claims a SHOCKING space fact! The sun is NOT YELLOW!
dooklik website logo
share
share this article on facebook
share this article on twitter
share this article on whatsapp
share this article on facebook messenger
A former astronaut claims a SHOCKING space fact! The sun is NOT YELLOW!

It is widely believed that the color of the sun is yellow, according to what it looks like in the Earth's atmosphere, and sometimes turns to red-orange at specific times of the day.

But in fact, the true color of the sun is white, which was confirmed by former NASA astronaut Scott Kelly, and explained the strange physics game behind this phenomenon.

He explained that the sun emits a full spectrum of light, consisting of every color of the rainbow. The reason we see our nearby star in yellow is mainly due to the phenomenon of refraction of light.

One clue to this phenomenon is that while the sun appears yellow on Earth, once it leaves our planet's atmosphere, it will appear white, due to how our eyes see the color.

In response to a tweet about this phenomenon, Kelly said: "I can confirm this space fact."

According to NASA, when sunlight, which consists of a full spectrum of light, passes through the atmosphere, blue light, which has a shorter wavelength, is scattered more efficiently than red light. This is why humans do not see the light Blue when passing through the atmosphere.

At the same time, all wavelengths of visible light passing through our atmosphere are diminished, so that the light reaching our eyes does not immediately saturate the cone receptors.

"This allows the brain to perceive the color from the image with a bit of blue-yellow," NASA wrote.

And while it doesn't affect what our eyes see, all X-rays and gamma rays are filtered out before they get close to Earth.

"Most UV radiation is absorbed by stratospheric ozone (more than 10 km above the Earth's surface) and most infrared radiation is absorbed by water vapor and other molecules with non-zero dipole moments," NASA says.

This effect also explains why sunrises and sunsets appear red. During this time, the light travels further, because more blue light is scattered and made a much larger proportion of the longest wavelength (red) in our eyes.

NASA said that although sunlight consists of every color in the spectrum, in space, the light that enters our eyes is so strong that the three colored cone cell receptors, which measure red, green and blue, are completely saturated, and thus appear white.

And what we think of as color actually depends on the frequency of the light, as Christopher Bird, assistant professor of physics at West Texas A&M University, notes: “The whole sun and all its layers are glowing.”

 

Speaking to Live Science, he said: "The color of the sun is the spectrum of colors found in sunlight, which arises from a complex interaction of all parts of the sun."

He pointed out that each pure color has a distinct wavelength, with red having the lowest frequency and violet with the highest frequency of visible light.

When we direct solar radiation through a glass prism (a tool used to study white light and manipulate the colors that make it up), we see all the colors of the rainbow come out from the other end, which is also all the colors visible to the human eye, which also proves that the sun is white.

Professor Beard added: "The chromatic components of sunlight are very close enough to be present in equal amounts, so it is more correct to say that the sun is white rather than saying it is yellow, orange or any one pure color."

Related Articles
doolik website logo
The universe is a huge, enigmatic region full with marvels that defy comprehension and spark the imagination. Space is full of amazing and perplexing occurrences, such as the astounding realization that there are more stars in the universe than there are grains of sand on Earth and the mind-boggling concept of time dilation. The astounding complexity and beauty that exist beyond our planet will wow you as you read these 18 mind-blowing facts about space and the universe.
doolik website logo
Elon Musk's rebranded social media platform, X, has been making headlines with its bold claims of being the "#1 news app in more than 140 countries worldwide." However, the actual download statistics tell a different story. Despite the fervent promotion, X's downloads aren't keeping pace with its touted popularity, especially when compared to the dominance of Meta’s suite of apps. This blog delves into the current landscape of app downloads and unpacks the reasons behind the apparent discrepancy between X’s claims and its real-world performance.
Live Video Streaming
Live video streaming lets you engage with your audience in real time with a video feed. Broadcast your daily show to your audience with no limits, no buffering and high quality videos. Reach all devices anytime anywhere with different video qualities that suits any device and any connection.
$1,120/YE*
The website uses cookies to improve your experience. We’ll assume you’re ok with this, but you can opt-out if you wish.
ACCEPT