The x-ray will be displayed in a lightbox in the forthcoming exhibition A Taste for Impressionism at National Galleries of Scotland

A series of sketches for the artist's monumental SDI painting of 1986 are believed to be the "only studies for an abstract painting to have survived"

The work’s last public appearance was on 10 March 1838 in a Christie’s London sale. “It’s like a 300-year-old brand new painting,” says dealer Christopher Bishop.

Exhibition of the Mexican artist’s documents tell of often fraught dealings with doctors and the support she received from friends

An unattributed painting in Lincolnshire's Burghley House bears a striking resemblance to the work of Hans Eworth

Lost Wax, now valued between $10m and $20m, was stored in a private vault for four decades

Plus, London's new Queer Britain museum and a rediscovered work by Caterina Angela Pierozzi

The work, depicting the artist's uncle at a piano, will also go on long-term loan to Leopold Museum in Vienna

Francis Hines was a well-known artist most famous for wrapping the Washington Square Park arch in fabric, but after he died in relative obscurity, in 2016, his work was nearly lost forever

The artist’s imprint was probably left when he carried the picture back to the asylum

The 19th-century work, executed just before the sculptor's death, has been rediscovered after languishing outside for more than 50 years

An expedition team has located the famed shipwreck in what has been described as a "milestone in polar history"

Sinister besuited figure, painted in Monaco in 1946, was only recently rediscovered

The “once-in-a-lifetime” discovery took place on a building site across the river from what would have been ancient Londinium

The director of Sydney’s Australian National Maritime Museum announced that he is "convinced" it is the long-lost vessel, while the director of Rhode Island Marine Archaeology Project says the findings are not conclusive

Original sketch has been revealed beneath the paint, shedding light on the Dutch master's intention—but worrying deterioration of the famous picture has also been found

Discovery announced as part of new excavations that will open up the ancient beachfront to visitors

The first ever mosaic illustrating scenes from Homer’s Iliad, it would have decorated an imposing dining and entertainment space within a major villa complex

Plus, Fabergé in London and a rediscovered Dürer

The US family who owned it believed it was a 20th-century reproduction

Less-experienced artists carved body parts, while master sculptors worked on faces among archaeologist's discoveries at the mortuary temple of Hatshepsut

Little has been know about the city of Karakorum where Genghis Khan once established a camp—until now

The tomb from the time of King Ramesses II is the latest big discovery at Saqqara, south of Cairo

Skeletons of 12 men believed to have fought in the Battle of Austerlitz in 1805 have been discovered in Brno

Sculpture atop the final resting place of the medieval knight and heir to Edward III has been examined by a team of researchers led by The Courtauld Institute of Art

Show opening in Dallas and travelling to Amsterdam reveals findings from three-year international research project into Vincent's olive grove pictures

Previously thought to be Korean, the brush washer has been newly identified as being nearly 1,000 years old and manufactured at the imperial Ru kiln

New research indicates Hubert started the work but had to stop, so Jan took over

Exhibition on Madrid museum’s copy of the Mona Lisa sheds new light on the original

The story of enigmatic artist Jacobus Vrel will be told in an exhibition scheduled for 2023 and in a book published this month