Julia Halperin

Sotheby’s stands alone and sweeps up $368.3m at Impressionist sales

The auction house took a chance sticking to a schedule that clashed with the Venice Biennale’s opening—and it paid off

Nepal’s cultural heritage celebrated in New York

The Rubin Museum of Art is showing art, organising tours and hosting events to help support the earthquake ravaged country

Museums in Europe and US draw up rescue plans for ravaged sites in Iraq

France takes the lead as calls grow for co-ordinated response after attacks by fanatics on Assyrian royal cities

The end is nigh for New York’s Museum of Biblical Art

Unable to afford Manhattan’s astronomical rents, the small secular museum will close in June with its hit exhibition of Donatello sculptures on loan from the Duomo museum

Lower East Side gallery Lu Magnus to close bricks and mortar space

Founder Lauren Scott Miller plans to “go mobile” with her creative programming

Saved by Jackie O in the 1960s, a restored Renwick Gallery to reopen this autumn

America’s first purpose-built art gallery, located just across from the White House, has undergone a $30m renovation

Excitement builds as public opening of new Whitney approaches

Leading artists among the guests at preview parties at New York museum

Democrats lobby for US artists’ economic rights with two bills

But it remains unclear what chance either proposal has of passing into law while Republicans control both houses of Congress

Lawnews

Artist wins case against neighbours he secretly photographed

Appellate Court upholds First Amendment rights but encourages stricter privacy laws in future

Almost one third of solo shows in US museums go to artists represented by five galleries

Survey reveals prevalence of Pace, Gagosian, David Zwirner, Marian Goodman and Hauser & Wirth in exhibition programming

How Frida Kahlo found her Mexican identity in Detroit

Though she distinctly disliked the experience, the Detroit Institute of Arts shows how it shaped her iconic imagery

Menil reveals secrets of Newman’s technique

An eight-year effort to restore a major work by Barnett Newman (1905-70) has shed new light on the artist’s methods.

New York leans to the left under mayor’s plans for art

De Blasio focuses on diversity, social value and access for all

Trust no one: victory for Gagosian in two-year case

Court concludes that dealers’ statements of value are legally meaningless

Disputesarchive

Gagosian and Perelman urged to settle dispute

Many famous figures of the art world are caught up in the drama

Smithsonian Design Museum reopens with array of high-tech displays

Cooper Hewitt puts can-do spirit into the house Carnegie built

Richard Tuttle: Weaving his magic around the world

Trio of Richard Tuttle exhibitions includes his largest work to date in the Tate’s Turbine Hall

Richard Tuttle: now’s the time to be-weave

Tate Modern, the Whitechapel Gallery and Bowdoin are showing the textile artist’s works

Mugrabisarchive

Mugrabis dragged into Gagosian legal case

Ongoing lawsuit between the financier Ronald Perelman and the dealer Larry Gagosian

Rauschenberg inspires tomorrow’s curators

The Rauschenberg Foundation competition is now open

Collectors net website art by Rafaël Rozendaal

You can buy an animated fried egg for $6,000

Young collectors collaborate for MoCA

The Director’s Council comprises 25 to 30 names from the fashion, entertainment and finance industries.