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A growing number of countries will now sell foreigners one of their passports - for a price.

We tend to assume that our internal monologue “speaks” in words – but it turns out that, for many of us, it’s much more complicated.

The flight shame movement is about feeling accountable for your carbon footprint - but it is also about rediscovering the joy of slow travel, writes Jocelyn Timperley.

With increased lifespans, elders are living thousands of days longer. That’s very good news for the global economy.

Three scientists have been awarded the 2019 Nobel Prize in Chemistry for the development of lithium-ion batteries.

Shakil Afridi was accused of running a fake vaccination scheme and says he never got a fair trial.

There could be a simple way to help young children’s brains improve for the better, with long-lasting benefits.

Child development research has often ignored fathers. But new studies have found non-maternal caregivers play a crucial role in children’s behaviour, happiness, even cognitive skills.

We examined the research and spoke to experts to get to the bottom of the age-old question: Are eggs healthy – or a cause of heart disease?

Nonviolent protests are twice as likely to succeed as armed conflicts – and those engaging a threshold of 3.5% of the population have never failed to bring about change.

The theory of Dunbar’s number holds that we can only really maintain about 150 connections at once. But is the rule true in today’s world of social media?

Three scientists have been awarded the 2019 Nobel Prize in Physics for discoveries about the Universe.

The research vessel is spearheading the biggest ever scientific expedition at the North Pole.

Jupiter had been the "moon king" for some 20 years.

One man's desire to create the perfect gun profoundly changed manufacturing.

Al-Qaeda leader Osama Bin Laden was in active control of the terror network from his compound in northern Pakistan, US officials say.

A high income is a badge of success in many countries, but in Sweden a deep-rooted cultural code called Jantelagen stops many from talking about it.

One of the first things visitors to Japan notice is how clean everywhere is – yet there are hardly any litter bins and street sweepers. What's the secret behind this contradiction?

Priests and bishops will discuss whether to allow married priests in remote parts of the Amazon.

They are 250-million-year-old "evolutionary remnants" most lose before birth, scientists say.

Reptile experts says it is "impossible" for a tortoise to reach such an age.

A team of more than 60 experts is trying to find out more about the enigmatic Nabataean culture.

How the ancient ritual of 'muta'a marriage' is being brutally misused to exploit vulnerable young women in Iraq.

Improvements in life expectancy are slowing after close to 200 years of fairly consistent progress. What's the cause?

Emily Zamourka's life is set to change after she was spotted hitting all the right notes in a US subway.