"Five centuries after his death, during which thousands of scholars have read his works, have discussed his discoveries and have investigated his life from every point of view, there is still a lot to know about Leonardo da Vinci, the 'Renaissance Man'," Dr. Davide Lazzeri, co-author of the new study told Newsweek.
The painting was initially sold to Sotheby's in 1958 for just $60.
One civil servant has been fighting to change passport photo rules since 2012.
A secret portrait has been uncovered under the Mona Lisa, a French scientist claims.
"Israel is the last frontier of the free world," reads the tweet, which has since been removed following complaints