Did you know that your bones constantly degrade and renew themselves? Repair is not only triggered by a break or fracture, it instead operates on a constant cycle that can be measured in days rather than months or years. In fact, scientists have come to realise that your skeleton undergoes a more intensive period of decay in the morning and gets regenerated at night. Wake up feeling refreshed? Thank your hard-working osteoblasts.

When Google added an AI tool to its maps platform recently, the idea was to give users a fun way to construct imaginary buildings and visualise changing cities. Instead, people knocked over the Eiffel Tower, flooded London and bombed suburbs. Misinformation warnings had to be issued to clarify that no, the Great Pyramid of Giza had not fallen into a massive sinkhole.

The fake images being produced may have been absurd but there was obvious potential for this technology to be used in far more politically fraught applications, especially in disputed territories. Google has since pulled the tool and, according to a professor of cartography, the move was desperately needed. He shows that trust is a far more important force in global mapmaking than many of us understand, and has taken centuries to develop.

Devastating enough on their own, the wildfires that have struck France this summer became even more dangerous when they spread into areas where unexploded bombs lay buried. European land is littered with ordnance from the first and second world wars and efforts to decontaminate the region have been going on for decades. Add heat and this buried legacy becomes a live and explosive problem.

BTS, the most famous K-pop band in the world, is to boycott the Grammy awards, apparently over the introduction of the new category “best Asian pop music performance”. The rejection of the new category by the group in the best position to win it has opened an interesting debate about why music needs to be segmented in the way it is – and who gets to define genres.

Also this week, India and Pakistan take their rivalry into space, new findings on how ancient people travelled from Sicily to Malta and why we sent an expert on grief to watch the new Spider-Man film.