Studying samples from the ice sheet gives an environmental record of over a million years.
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Israel intercepts Gaza flotilla and detains activists including Greta Thunberg
South Africa and Turkey have criticised the incident in international waters. Israel says those on board are safe.
England are 'chalk and cheese' from Ashes - Sciver-Brunt
England captain Nat Sciver-Brunt says that they are a different side both on and off the pitch as they prepare for their Women's World Cup opener against South Africa on Friday.
What we know so far
Three people have died including the suspect in a car and stabbing attack on the holiest day in the Jewish religious calendar.
Man who 'married' care home girl, 15, jailed for sex abuse
The victim was sexually abused by groups of men from the age of 13 in West Yorkshire, a court hears.
'My pay is being held hostage': Federal workers on US government shutdown
Government staff describe their uncertainty during a budget impasse - though not all of them oppose the shutdown.
'Ryder Cup abuse of McIlroy crossed the line'
There is "no place in golf" for the abuse suffered by Rory McIlroy and Team Europe at the Ryder Cup, says PGA of America CEO Derek Sprague.
I'm not resigning, Met Police chief says after BBC investigation
Sir Mark Rowley insists he won't resign, saying it's "the misogynists and racists frankly who want me out".
BBC journalist describes 'shocked silence' at scene of attack
Danny Savage says there was a 'shocked silence' on the streets near the synagogue.
'The man was just running out with a knife' - eyewitnesses describe how attack unfolded
A delivery driver describes the moment a man is shot by firearms officers at Heaton Park synagogue.
Watch: 'Get back, he's got a bomb' - armed police at the scene
Two people have died after a car and stabbing attack at a synagogue in Manchester.
Tickets, bots & touts - is Chelsea relationship with fans turning sour?
Chelsea are back in the Champions League, but relations between parts of the fanbase and the club hierarchy have turned sour.
Tickets, bots & touts - is Chelsea relationship with fans turning sour?
Chelsea are back in the Champions League, but relations between parts of the fanbase and the club hierarchy have turned sour.
Singapore GP declared F1's first 'heat hazard' race
Formula 1's governing body declares this weekend's Singapore Grand Prix a 'heat hazard' race with temperatures expected to reach 31C.
Singapore GP declared F1's first 'heat hazard' race
Formula 1's governing body declares this weekend's Singapore Grand Prix a 'heat hazard' race with temperatures expected to reach 31C.
Attack 'a serious incident', says Manchester mayor Andy Burnham
Manchester Mayor Andy Burnham advises listeners to avoid the area.
Hamas military leader in Gaza objects to ceasefire plan, BBC understands
President Trump's proposal, accepted by Israel, stipulates that Hamas disarm and have no future role in governing Gaza.
Hamas military leader in Gaza objects to ceasefire plan, BBC understands
President Trump's proposal, accepted by Israel, stipulates that Hamas disarm and have no future role in governing Gaza.
Tesco warns 'enough is enough' on business taxes
Ken Murphy says he does not want more costs to be added onto business, and calls for a "pro-growth" Budget.
White House says layoffs 'imminent' with no end to shutdown in sight
As a bitter standoff between Republicans and Democrats plays out, there is little sign that either side is willing to budge.
Nirvana baby loses legal case over Nevermind album
The man who was photographed as a baby on the LP cover sued the band for distributing child pornography.