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

Is your summer too much of a damp squib? Then head over to Death Valley

Sweltering conditions hit Arizona and California in a heat wave set to last all weekend.

Don't look down! Nik Wallenda crosses the Grand Canyon on just two inches of steel rope

He is already considering his next death-defying feat in New York

Nik Wallenda will cross the Grand Canyon with cameras rigged to his body

Watch if you dare: Daredevil to attempt high-wire Grand Canyon crossing

Armchair thrill-seekers will be able to watch a high-wire walker cross the Grand Canyon, Arizona without a harness on television late tonight.

Up and away: Holly Bleasdale parted company with her coach Julien Raffalli in highly emotional circumstances

Down-to-earth Holly Bleasdale can scale new heights

Pole vaulter is only 21 in a discipline dominated by thirtysomethings but wants to be the third woman to jump five metres

Temple of the Feathered Serpent at the archaeological site of Teotihuacan

Hundreds of mysterious yellow orbs discovered under Mexico’s Temple of the Feathered Serpent

Archaeologists excavating beneath Mexico’s Temple of the Feathered Serpent have discovered hundreds of mysterious yellow orbs.

Nik Wallenda crossing Niagara Falls on a wire in 2012

Niagara Falls daredevil plans to cross Grand Canyon without a harness

Seventh-generation acrobat says it's "exciting" that there will be no safety precautions in place

Equality activists outraged as Arizona considers banning transgender people from using public toilets not designated for their birth sex

Proposal comes less than a month after the city of Phoenix passed a human rights ordinance prohibiting gender identity discrimination in public accommodations

A photo issued by the National Optical Astronomy Observatory of a planetary nebula Sh2-174 which gives the appearance of a red rose - or maybe a tulip - but is actually the remains of a dying star some 1,000 light years away

Roses are red, one star is blue - even astronomers' romance shines on through

It seems that even astronomers have a romantic side.

Brandt Snedeker

Brandt Snedeker rises into top four

Brandt Snedeker has moved to a career-best fourth in the world after following up back-to-back runners-up finishes with victory at the Pebble Beach Pro-am.

Paul Gascoigne pictured in November last year at a Lazio match

Paul Gascoigne continues to receive hospital treatment in the United States

The former England midfielder travelled to a clinic in Arizona last week

Identical twin brothers held over sex attacks – but which is the suspect?

Identical twin brothers have been arrested by police in Marseille investigating a series of sexual assaults in the past 15 months. But the investigators have no idea which of the two brothers may be guilty, as the victims are unable to tell them apart.

Muhammad Ali's daughter denies rumours boxing legend is close to death

Muhammad Ali's family have denied reports that his health is deteriorating after comments from his brother which claimed he was 'close to death.'

Body of evidence: Macpherson may have to testify in her former adviser’s case against NI

Hacking's model witness: Introducing Elle Macpherson

After a six-year silence, the Australian supermodel heads to the High Court

Part of Google's panorama of the Colorado River

Ever wanted to see the Grand Canyon? No need for a flight, thanks to Google

Tech giant Google has launched a new service offering panoramic views of the most beautiful spots in the Grand Canyon.

Tee break: Rory McIlroy and Tiger Woods chat during the Turkish Airlines World Golf Final at Antalya
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Independent Travel
Pompeii, Capri & the Bay of Naples
Seven Cities of Italy
Burgundy, the River Rhone & Provence
Prague, Budapest and Vienna
Lake Garda
3.	Provence 6 nights B&B by train from £599pp
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HIV pill: Scientists hail discovery of 'game-changer' that cuts the risk of infection among gay men by 86%

Scientists hail daily pill that protects against HIV infection

Breakthrough in battle against global scourge – but will the NHS pay for it?
How we must adjust our lifestyles to nature: Welcome to the 'Anthropocene', the human epoch

Time to play God

Welcome to the 'Anthropocene', the human epoch where we may need to redefine nature itself
MacGyver returns, but with a difference: Handyman hero of classic 1980s TV series to be recast as a woman

MacGyver returns, but with a difference

Handyman hero of classic 1980s TV series to be recast as a woman
Tunnel renaissance: Why cities are hiding roads down in the ground

Tunnel renaissance

Why cities are hiding roads underground
'Backstreet Boys - Show 'Em What You're Made Of': An affectionate look at five middle-aged men

Boys to men

The Backstreet Boys might be middle-aged, married and have dodgy knees, but a heartfelt documentary reveals they’re not going gently into pop’s good night
Crufts 2015: Should foreign dogs be allowed to compete?

Crufts 2015

Should foreign dogs be allowed to compete?
10 best projectors

How to make your home cinema more cinematic: 10 best projectors

Want to recreate the big-screen experience in your sitting room? IndyBest sizes up gadgets to form your film-watching
Manchester City 1 Barcelona 2 player ratings: Luis Suarez? Lionel Messi? Joe Hart? Who was the star man?

Manchester City vs Barcelona player ratings

Luis Suarez? Lionel Messi? Joe Hart? Who was the star man at the Etihad?
Arsenal vs Monaco: Monaco - the making of Gunners' manager Arsene Wenger

Monaco: the making of Wenger

Jack Pitt-Brooke speaks to former players and learns the Frenchman’s man-management has always been one of his best skills
Cricket World Cup 2015: Chris Gayle - the West Indies' enigma lives up to his reputation

Chris Gayle: The West Indies' enigma

Some said the game's eternal rebel was washed up. As ever, he proved he writes the scripts by producing a blistering World Cup innings
In Ukraine a dark world of hybrid warfare and murky loyalties prevails

In Ukraine a dark world of hybrid warfare

This war in the shadows has been going on since the fall of Mr Yanukovych
'Birdman' and 'Bullets Over Broadway': Homage or plagiarism?

Homage or plagiarism?

'Birdman' shares much DNA with Woody Allen's 'Bullets Over Broadway'
Broadchurch ends as damp squib not even David Tennant can revive

A damp squib not even David Tennant can revive

Broadchurch, Series 2 finale, review
A Koi carp breeding pond, wall-mounted iPads and a bathroom with a 'wellness' shower: inside the mansion of Germany's 'Bishop of Bling'

Inside the mansion of Germany's 'Bishop of Bling'

A Koi carp breeding pond, wall-mounted iPads and a bathroom with a 'wellness' shower