Key questions on…

Commemorations are taking place to mark the 800th anniversary of the signing of the Magna Carta – but how much do we know about the first building block of the British constitution?

Turkey’s AK party has lost its majority at a general election after 13 years in government – a blow to President Recep Tayyip Erdogan, who was seeking to cement his grip on power.

Chancellor George Osborne has promised “radical devolution” for cities to allow them to grow their local economies – but what does devolution mean? And what powers will be devolved?

A new wonder material discovered by two Russian scientists at Manchester University, graphene promises to transform people’s everyday lives. But what is it? And how will it be used?

The independent commission – set up by the International Cycling Union (UCI) to investigate doping – finds Lance Armstrong was given preferential treatment by the sport’s governing body.

Binyamin Netanyahu appeals to the US congress to reject a nuclear deal with Iran that Barack Obama is hoping to strike. Where does that leave US-Israeli relations?

What does the future hold for Russian politics after one of its most prominent opposition activists was gunned down in front of CCTV cameras, just 200 metres from the Kremlin?

We are paying too much for our gas and electricity and millions could have saved up to £234 a year if we had switched supplier or changed tariff, according to a competition inquiry.

Amazon defends a free trial of extra benefits, which ends in an automatic upgrade to paid membership costing £79 a year.

The government is announcing three projects to test and promote driverless cars. But will they ever be significantly safer than vehicles driven by humans? And who is responsible if an accident occurs?

With Vladimir Putin meeting Angela Merkel and Francois Hollande in Moscow to discuss the Ukraine conflict, what is driving the Russian president, what is he seeking, and will he get it?

Labour sets out plans to shake up private renting, with letting fees banned, longer tenancies and an end to “excessive” rent increases.

An outbreak of Ebola has killed more than 670 people across Guinea, Liberia, Nigeria and Sierra Leone. So what do we need to know about this highly contagious virus?

Home Secretary Theresa May is under pressure to set up a public inquiry into allegations of organised child sex abuse at Westminster in the 1980s after a dossier of evidence was lost – but why now?

You could be forgiven for thinking Ukip won the council elections. It didn’t, but a strong showing from Nigel Farage’s party has sent shockwaves through the Tories, Labour and Liberal Democrats.