Jackson Graham

More than 6 million Australians have low bone density. How does bone get lost and remade? And how do you know if it’s osteoporosis?

If you’ve got an over-confident chatbot in your life, you’re not alone. Why does AI get it wrong – and how often?

Getting another view can be sensible, or simply reassuring. When might you want one – and what are the red flags?

Some 150,000 artificial joints a year go into Australians’ bodies. But they’re no easy fix. What’s it like to get a new one?

A minerals deal. No security guarantee. A tongue-lashing in the White House. What does Trump’s return mean for peace?

Fancy “educational” toys might not be the best for your child. Here’s what the experts put in toy boxes.

We’re told flying is safe and statistics confirm it. So what happens behind the scenes when an engine goes “bang”?

In Australia’s big cities, we tend to take our water for granted. How does it get to us – and could we ever run out?

Some are cup-shaped, some have domes, others have been likened to apartment complexes. How do birds build their nurseries?

Weird things can happen to the body in space – not least from abrupt changes in gravity. How do astronauts do it?

The menu looks foggy. The tiny instructions are a blur. What’s actually going on your eye, and how does vision work?

Violence is spreading in Britain’s streets. But who is rampaging and why?

Snap elections in France in 2024 put a spotlight on the leader of its major far-right party. Who is he?

They taste words, smell colours, feel flavour and more. What’s it like to have synaesthesia, a ‘crossover of the senses’?

They can pardon a turkey and order a nuclear strike – but can a US president sweep away all checks and balances on power?

An “acute brain failure” jettisons a patient, their doctors and families into an anxious twilight zone. How aware is a person in a coma? And how are decisions made in the face of uncertainty?

Robert F Kennedy Jr has gone from ‘troubled life’ to candidate for the top job. Here’s why his rivals are paying attention.

It took just a few wrong steps for Madeleine, 73, to lose sight of a remote walking track. Three days later, as searchers combed heavy forest, time was running out.

Fire crackers and the colour red usher in the good – and scare off a marauding creature that descends on the second full moon. How did the ancient customs begin?

Marriage, career, children – the big decisions can often be the hardest. Is there an optimal method for making a choice?