This artist's concept depicts NASA's Voyager 1 spacecraft entering interstellar space, or the space between stars. Interstellar space is dominated by the plasma, or ionized gas, that was ejected by the death of nearby giant stars millions of years ago.

'Boldly going where no probe has gone before': Nasa confirms Voyager 1 has left the solar system

After a 36 year journey, the probe will allow humans to understand what exists in interstellar space for the first time

Frog photobombs Nasa rocket launch with one giant leap for frogkind

A leaping frog might be a sight more suited to pastoral ponds than rocket launches but from spawn to space, this ambitious amphibian ambushed a Nasa mission earlier this week.

To boldly grow: Nasa reveals plans to start growing lettuce in space

New machine will deliver nutrients to six romaine lettuces

Bob Geldof has signed up to become the first Rock Astronaut

First Boomtown Rat in Space? Bob Geldof prepares to become a 'Rock Astronaut'

Bob Geldof is going into space as a passenger on a commercial flight.

Selfies from space: NASA has lift-off on Instagram to mark moon probe launch

Space agency says it will share with its followers the 'most engaging images on and off the planet'

Nasa launches spacecraft LADEE to investigate levitating moon dust

LADEE probe takes off successfully in latest US mission to the Moon

Acer's Liquid S2 is the first smartphone to record in 4K resolution

But with only 16GB of onboard storage, you won't be able to keep more than a couple minutes of footage.

Nasa spots a 'Cosmic Caterpillar' in the middle of metamorphosis

Light-year-long proto-star is battling the radiation from its neighbours to try and mature into a star

Vast 466-mile-long canyon discovered under Greenland ice sheet, say scientists

Specialist radar uncovered the 800m deep canyon

China's unmanned Chang’e 3 moon rover ready for launch by years end

China aims to launch its first unmanned lunar lander by the end of this year, complete with a radio-controlled rover to transmit images and dig into the surface to test samples.

Japan postpones new rocket launch... 19 seconds before blast off

Launch aborted after irregularity in the rocket posture was detected

Video: Nasa reveal their plan to capture an asteroid

Space agency suggests 2025 as a possible date to complete the mission

Artist's rendition of a settlement on Mars

A one-way ticket too tempting to ignore: 165,000 apply for mission to colonise Mars - despite no chance of them ever returning to Earth

Applications are for a private mission to send four men and women to the Red Planet

For sale: Three Nasa shuttle launch platforms - collection only

The space equipment clearout will also see spare tyres and other items up for grabs

Nasa's Voyager 1 may have left the solar system after 36 years in space

Nasa's Voyager 1 may have crossed into interstellar space last year to become the first man-made object to leave the solar system, if new research proves correct.

Life and Style
Approaching sale shopping in a smart way means that you’ll get the most out of your money
life + styleSales shopping tips and tricks from the experts
News
newsIt was due to be auctioned off for charity
News
Coca-Cola has become one of the largest companies in the world to push staff towards switching off their voicemails, in a move intended to streamline operations and boost productivity
peopleCoca-Cola staff urged to switch it off to boost productivity
Environment
Sir David Attenborough
environment... as well as a plant and a spider
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'That's the legal bit done. Now on to the ceremony!'
voicesThe fight for marriage equality isn't over yet, says Siobhan Fenton
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Independent Travel
Burgundy, the River Rhone & Provence – Five-star MS Swiss Corona 7 nights from £999pp
Lake Como St Moritz & the Bernina Express 7 nights from £809pp
Vietnam
Lake Maggiore, Orta & the Matterhorn 7 nights from £939pp
South Africa
Spain
Prices correct as of 19 December 2014
Isis in Iraq: Yazidi girls killing themselves to escape rape and imprisonment by militants

'Jilan killed herself in the bathroom. She cut her wrists and hanged herself'

Yazidi girls killing themselves to escape rape and imprisonment
Ed Balls interview: 'If I think about the deficit when I'm playing the piano, it all goes wrong'

Ed Balls interview

'If I think about the deficit when I'm playing the piano, it all goes wrong'
He's behind you, dude!

US stars in UK panto

From David Hasselhoff to Jerry Hall
Grace Dent's Christmas Quiz: What are you – a festive curmudgeon or top of the tree?

Grace Dent's Christmas Quiz

What are you – a festive curmudgeon or top of the tree?
Nasa planning to build cloud cities in airships above Venus

Nasa planning to build cloud cities in airships above Venus

Planet’s surface is inhospitable to humans but 30 miles above it is almost perfect
Surrounded by high-rise flats is a little house filled with Lebanon’s history - clocks, rifles, frogmen’s uniforms and colonial helmets

Clocks, rifles, swords, frogmen’s uniforms

Surrounded by high-rise flats is a little house filled with Lebanon’s history
Return to Gaza: Four months on, the wounds left by Israel's bombardment have not yet healed

Four months after the bombardment, Gaza’s wounds are yet to heal

Kim Sengupta is reunited with a man whose plight mirrors the suffering of the Palestinian people
Gastric surgery: Is it really the answer to the UK's obesity epidemic?

Is gastric surgery really the answer to the UK's obesity epidemic?

Critics argue that it’s crazy to operate on healthy people just to stop them eating
Homeless Veterans appeal: Christmas charity auction Part 2 - now LIVE

Homeless Veterans appeal: Christmas charity auction

Bid on original art, or trips of a lifetime to Africa or the 'Corrie' set, and help Homeless Veterans
Pantomime rings the changes to welcome autistic theatre-goers

Autism-friendly theatre

Pantomime leads the pack in quest to welcome all
The week Hollywood got scared and had to grow up a bit

The week Hollywood got scared and had to grow up a bit

Sony suffered a chorus of disapproval after it withdrew 'The Interview', but it's not too late for it to take a stand, says Joan Smith
From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?

Panto dames: before and after

From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?
Thirties murder mystery novel is surprise runaway Christmas hit

Thirties murder mystery novel is surprise runaway Christmas hit

Booksellers say readers are turning away from dark modern thrillers and back to the golden age of crime writing
Anne-Marie Huby: 'Charities deserve the best,' says founder of JustGiving

Anne-Marie Huby: 'Charities deserve the best'

Ten million of us have used the JustGiving website to donate to good causes. Its co-founder says that being dynamic is as important as being kind
The botanist who hunts for giant trees at Kew Gardens

The man who hunts giants

A Kew Gardens botanist has found 25 new large tree species - and he's sure there are more out there