Is the world's colour black or grey? No. Scientists have found out that bright pink is the oldest colour. Researchers looked at 1.1-billion-year-old in the Sahara Desert. They crushed the rocks into and found a bright pink colour. Dr. Nur Gueneli from the Australia National University led the . She experimented on the rocks in a in Australia. She said the colour was made by organisms that lived in the . She added that those oceans no exist. At that time, tiny organisms were the largest life on Earth.
Dr. Gueneli said she was when she saw the pink in the rocks. She thought the rock powder might turn black in their , but it turned pink. Another said: "Dr. Gueneli came running into my and said, 'look at ,' and she had this bright pink …It turned out to be colour, 1.1 billion years old." Gueneli explained how her find was. She said: "Imagine you could find a fossilized dinosaur that still has its colour - green or blue. That is exactly the type of discovery that we've made."