Double Helix

23andMe: why have DNA kits been approved in the UK?

Briefing Tue 2 Dec, AT 14:09

DNA screening devices that profile health risks are banned in the US – but now legal in the UK

HIV Virus

HIV: why the virus could eventually be 'almost harmless'

Briefing Tue 2 Dec, AT 11:53

Scientists have observed an 'incremental change' in HIV which could lead to the virus gradually becoming 'watered down'

Greenland ice climate change

UN summit on climate change in Lima: can deal be reached?

Briefing Mon 1 Dec, AT 11:52

Diplomats hopeful of a global agreement after more than two decades of failed attempts

St Andrew's Day 2014: the strange tale of Scotland's patron saint

Briefing Sun 30 Nov, AT 10:04

Also saint of sore throats, fishmongers and old maids, St Andrew has a colourful and eccentric history

Black Friday 2014: arrests and injuries on 'biggest retail day'

Briefing Fri 28 Nov, AT 12:35

Police have been called to stores across the UK as US bargain-hunting frenzy Black Friday catches on

Phil Hughes of Australia

Why did Phillip Hughes die? 'Freak injury' caused tragedy

Briefing Thu 27 Nov, AT 10:03

Batsman was struck in the neck by bouncer, in an area helmets 'cannot protect'

Health workers

Ebola virus factfile: what you need to know

Briefing Wed 26 Nov, AT 15:57

West Africa's Ebola epidemic is by far the most serious outbreak of the deadly virus

Wayne Rooney

De Gea, Rooney, Hazard and Bolasie in team of the week

Briefing Mon 24 Nov, AT 14:31

Man United provide the spine with Spurs, Newcastle and Crystal Palace heroes also in the side

Barack Obama announced executive actions in the US

Executive orders: how a US president can rule by decree

Briefing Fri 21 Nov, AT 10:57

Republicans say Obama's immigration rules are illegal and should be overturned, but executive orders have a long history

JFK

Who killed JFK? 51 years of conspiracy theories

Briefing Thu 20 Nov, AT 13:14

It was the CIA, the KGB, aliens or an accident. Why three shots fired in Dallas still reverberate across America

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