What Mars could have looked like during an ice age 400,000 years ago.
Scientists used to believe that snowfall could never reach the ground.
The bell is a noisy and much loved national icon.
There is no basis in customary, conventional international law or domestic law for the spouse of a head of state to claim - as a right - some form of immunity when visiting a foreign state.
Trump's former chief strategist has returned to his media roots. And he has more than a few grudges.
Research into intermittent fasting suggests it's not a health gimmick.
New research has tracked how quickly Twitter accounts linked to extremism are being suspended.
Digital games now know you so well they can predict your behaviour.
Using the right metaphor in science is important.
For the third time in a row, first past the post has delivered confusion rather than stability.
A toxic combination of history and social tension makes Spain fertile ground for extremist recruitment.
The boulevard runs through the heart of the city, drives its tourist economy and acts as a symbol of life in Catalonia.
Why language diversity should be celebrated in schools.
Venom from lizards such as the Komodo dragon has the potential to treat heart attacks, strokes and blood clots.
Asking whether machines can really understand us is meaningless.
Piracy has risen and fallen with the ages, but international cooperation is the common factor behind their defeat.
Theatre is undergoing a virtual revolution.
To pitch an alternative timeline, you first have to believe a particular narrative of real history. That's where things can go wrong.
Inflation has been on the rise since the Brexit vote but, before long, deflation might be a greater concern.
Mass graves are being dug for hundreds of those killed in a nation once more gripped by grief.
In the midst of the country's struggle for independence, India's film industry became a messenger and ally in the global fight against Britain's enemies
The ice sheet is melting and permafrost is thawing. What's happening in Greenland will speed up climate change across the world.
Vladimir Putin position in the Kremlin looks more secure than ever, and he has shut down almost all the avenues for a genuine challenge.
A judge in Belfast has dismissed a challenge to Northern Ireland's ban on same-sex marriage citing it as a 'social policy' issue.
Research shows tranquility can help to boost levels of relaxation, reduce stress and even provide pain relief.
A new study finds a link between cloudy tap water and outbreaks of gastrointestinal illness, such as norovirus.
Flexible working reduces the likelihood that women cut their hours or leave the labour market after childbirth.
Spotify, Apple Music and the like aren't working for indy artists.
The spread of a multidrug-resistant fungal infection is rapid and alarming.
The alt-right is trying to subvert America's history of opposition to fascism.
The International Criminal Court has told Malian radical Ahmad al-Faqi al-Mahdi to pay €2.7m in reparations for an attack on the world heritage site.