Deal revealed as major show of German artist opens at gallerist's London space, which includes huge Stag Monuments installation

Brillstein Entertainment Partners will licence the US artist's paintings and "identify directing opportunities"

Foundation denies allegations that it manipulates the authentication process to inflate the value of its holdings

Sotheby’s tests the waters with first oil painting at auction in Hong Kong

In accepting the award, Andria Zafirakou asked for more support for the “power of the arts” in schools, particularly in poor communities

A string of exhibitions celebrating the 500th anniversary of the Venetian master’s birth will help to bring him back into favour

The judgment ends a lengthy legal battle between the heirs of Peggy Guggenheim and the US organisation

The entrepreneur has begun implementing his plan to colonise Mars and make us a “multi-planetary species”

Barbara Jatta speaks to us one year after her landmark appointment

Show will 'explore the artist's spiritual side' with Last Supper series and skull silkscreens

We asked curators, directors and collectors to tell us about the works that stopped them in their tracks

Funds promised to Pérez Art Museum Miami were allocated to American Museum of the Cuban Diaspora instead

Rumour mill has gone into overdrive over record-breaking auction

Beneficiaries of the family’s largesse deflect or ignore questions about the donors’ role in the drugs epidemic sweeping the US

Galleries are losing huge sums to cybercrime, what makes them vulnerable? Plus: the dubious restoration along the Camino di Santiago.

Hackers are using an email scam to intercept payments between galleries, collectors and others

Performance artist unable to raise $31m required for Koolhaas design

Artists like Marvin Gaye Chetwynd have prompted a rethink in the Tate’s approach to live art

A year after his death, MoMA turned down an offer of the artist’s work. Today, the appetite for his paintings has never been greater

The lowdown on the new Thomas Heatherwick-designed museum in Cape Town. Plus: London's most enticing shows this autumn

From spectacular architecture to an army of curators, what you need to know about Africa’s landmark contemporary art institution

Oscar-winning director, whose work opens at Milan's Fondazione Prada this week, says it's reductive to call it anti-Trump

Curator Christine Macel’s worthy aims of saving the planet and helping refugees has seriously backfired

Pavilion organisers put on a show despite receiving no government money

Artist's new documentary tells story of his underwater exhibition at Palazzo Grassi and Punta della Dogana

A petition launched by an animal rights group to block the work has attracted 20,000 signatures

Row follows long-running legal dispute between the Guggenheim Foundation and the collector's descendants

Campaigners demand axing of performance by Actionist at MONA's Dark Mofo festival

The independent Centre for the Less Good Idea aims to stay small and be creative

British artist's monumental sculptures fill François Pinault’s museums