People film a painting by artist Joan Mitchell called Iva 1973, donated by Jorge M. and Darlene Perez, at the Tate Modern in London, Thursday, April 3, 2025. ©AP Photo/Kirsty Wigglesworth ...

Tate Modern has announced it has received a major gift from a couple of art collectors in the form of a painting by the US modern artist Joan Mitchell. It was unveiled on Thursday as one of a ...