A NASA image of the snow-dusted Grand Canyon has created a striking optical illusion, making the vast chasm—more than a mile deep resemble a mountain range. (ISS / NASA via SWNS)
The deceptive effect stems from a phenomenon known as relief inversion, where viewers unconsciously expect light from the top of an image, but here the Sun shone from the south, at the bottom. (ISS / NASA via SWNS)
A NASA image of the snow-dusted Grand Canyon has created a striking optical illusion, making the vast chasm—more than a mile deep resemble a mountain range. (ISS / NASA via SWNS)
The deceptive effect stems from a phenomenon known as relief inversion, where viewers unconsciously expect light from the top of an image, but here the Sun shone from the south, at the bottom. (ISS / NASA via SWNS)
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Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language.
PLEASE TURN OFF YOUR CAPS LOCK.
Don't Threaten. Threats of harming another person will not be tolerated.
Be Truthful. Don't knowingly lie about anyone or anything.
Be Nice. No racism, sexism or any sort of -ism that is degrading to another person.
Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts.
Share with Us. We'd love to hear eyewitness accounts, the history behind an article.