News An aerial picture of the Grand Canyon in Arizona from around 30,000 feet (10,000m)

It was thought that the global landmark was perhaps 70million years old

Kabul Stories

In the tough, day-to-day life of Kabul, military reservists are learning skills that will bring them promotion in their real jobs at home, says Raymond Whitaker

Stars and planets: September

The migrant's masks

A journey of a writer who dwells both on the surface and in the deep

Twin eruptions threaten chaos for Ecuador

THE SMALL and economically racked Latin American nation of Ecuador may be hit by two simultaneous volcanic eruptions. A red alert had already been declared around one, Tungurahua, and 20,000 people evacuated from their homes when another, known as Guagua ("Baby") Pichincha, began threatening the capital, Quito, home to 1.2 million people.

Charles Cording

Sir: In his letter entitled "NHS is good value" (15 November), Dr Scammell refers to the "phobia" that the political parties have about spending public money on services we want. This is no phobia; the notion that public spending is in some way intrinsically bad and that private finance is unquestionably good is an example of a quasi-axiom, or "quaxiom".

Leading article: Heavenly omens

SHOOTING STARS are one of the most spectacular sights in astronomy and, like most celestial events, they attract their own brand of superstition. When the Leonid meteors come crashing through our skies tonight they should, if the clouds part, produce more than a dozen streaks a minute. Spectacular yes, but not quite the show of 1833 when the Leonids caused thousands of shooting stars to fall like a heavenly fountain, leading many to believe that the Day of Judgement was at hand.

Serendipity An explosive theory

LAST WEEK I visited the "Full Moon" exhibition at the Hayward Gallery in London, which displays just a tiny fraction of the 32,000 photographs taken by the Apollo astronauts between 1967 and 1972. It is a spectacular array of images, dismissing the myth that grey is necessarily dull. Unfortunately, the exhibition closes today, and so if you want to see it, you will have either to dash down to the South Bank this afternoon, or else buy the book, entitled Full Moon, by Michael Light.

Search engines: Serendipity - Life on Mars

THE UNLUCKIEST dog in history died on 28 June, 1911 in the town of Nakhla, Egypt. According to onlookers, it was struck by a rock from outer space, part of a meteor shower that peppered the region. Despite the dog's death, the Nakhla meteorite was a cause for celebration, because it was to play a major role in the story of extra-terrestrial science.

Spin that's out of this world

ASTRONOMERS HAVE captured detailed images of a big asteroid that missed the Earth by 5.3 million miles - about 20 times further away than the Moon - as it passed by this month.

Outlook: Next promotion

Outlook: Next promotion

`Red ten' means a global catastrophe

A DANGER scale has been devised to assess the potential devastation that could result from a collision between an asteroid and Earth.
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War with Isis: Iraq's government fights to win back Tikrit from militants - but then what?

Baghdad fights to win back Tikrit from Isis – but then what?

Patrick Cockburn reports from Kirkuk on a conflict which sectarianism has made intractable
Living with Alzheimer's: What is it really like to be diagnosed with early-onset dementia?

What is it like to live with Alzheimer's?

Depicting early-onset Alzheimer's, the film 'Still Alice' had a profound effect on Joy Watson, who lives with the illness. She tells Kate Hilpern how she's coped with the diagnosis
The Internet of Things: Meet the British salesman who gave real-world items a virtual life

Setting in motion the Internet of Things

British salesman Kevin Ashton gave real-world items a virtual life
Election 2015: Latest polling reveals Tories and Labour on course to win the same number of seats - with the SNP holding the balance of power

Election 2015: A dead heat between Mr Bean and Dick Dastardly!

Lord Ashcroft reveals latest polling – and which character voters associate with each leader
Audiences queue up for 'true stories told live' as cult competition The Moth goes global

Cult competition The Moth goes global

The non-profit 'slam storytelling' competition was founded in 1997 by the novelist George Dawes Green and has seen Malcolm Gladwell, Salman Rushdie and Molly Ringwald all take their turn at the mic
Pakistani women come out fighting: A hard-hitting play focuses on female Muslim boxers

Pakistani women come out fighting

Hard-hitting new play 'No Guts, No Heart, No Glory' focuses on female Muslim boxers
Leonora Carrington transcended her stolid background to become an avant garde star

Surreal deal: Leonora Carrington

The artist transcended her stolid background to become an avant garde star
LGBT History Month: Pupils discuss topics from Sappho to same-sex marriage

Education: LGBT History Month

Pupils have been discussing topics from Sappho to same-sex marriage
11 best gel eyeliners

Go bold this season: 11 best gel eyeliners

Use an ink pot eyeliner to go bold on the eyes with this season's feline flicked winged liner
Cricket World Cup 2015: Tournament runs riot to make the event more hit than miss...

Cricket World Cup runs riot to make the event more hit than miss...

The tournament has reached its halfway mark and scores of 300 and amazing catches abound. One thing never changes, though – everyone loves beating England
Katarina Johnson-Thompson: Heptathlete ready to jump at first major title

Katarina Johnson-Thompson: Ready to jump at first major title

After her 2014 was ruined by injury, 21-year-old Briton is leading pentathlete going into this week’s European Indoors. Now she intends to turn form into gold
Syrian conflict is the world's first 'climate change war', say scientists, but it won't be the last one

Climate change key in Syrian conflict

And it will trigger more war in future
How I outwitted the Gestapo

How I outwitted the Gestapo

My life as a Jew in wartime Berlin
The nation's favourite animal revealed

The nation's favourite animal revealed

Women like cuddly creatures whilst men like creepy-crawlies
Is this the way to get young people to vote?

Getting young people to vote

From #VOTESELFISH to Bite the Ballot