This 17th-century portrait was given plumper lips years after it was finished – an expert explains why

By Nicky Grimaldi, Assistant Professor of Arts, Northumbria University, Newcastle

For the everyday visitor to a gallery or museum, alterations to artworks made years, sometimes decades, after their original creation are rarely obvious. After all, the skill of the modern art conservator is for their work to remain imperceptible at normal viewing distance, thus retaining the integrity of the original artwork.

Modern-day art conservators tend to favour minimal interventions – avoiding both painting over original paint and changing the picture. The idea these days is that any interventions – such as cleaning varnish, mending tears, or in-painting (retouching) – should…

Read complete article

~	How collaboration from across Canada, and the world, is helping fight the Alberta wildfires

~	Video game performers are becoming Hollywood stars in their own right − and are on strike to be paid and protected accordingly

~	Paris Olympics: Canada’s soccer drone scandal highlights the need for ethics education

~	World News in Brief: Historic Palestine monastery on World Heritage in Danger List, rights office condemnation as Ghana upholds anti-gay law, free jailed Russian activist

~	Nearly half of children born in Wales in 2002-3 classed as having special educational needs – this may have negatively affected their attainment

~	Bosses are increasingly forcing workers back into the office – but evidence suggests it could backfire

~	Commonly used drug may extend women’s fertility, claim researchers – here’s what you need to know about rapamycin

~	The first farmers often made landscapes more biodiverse – our research could have lessons for rewilding today

~	An artist has stolen a coin from the British Museum as part of a performance piece – but is the artwork ethical?

~	Books That Shook the Business World: The Ecology of Commerce by Paul Hawken