New research into the 'deep biosphere' indicates that the first replicating life-forms on the planet may have originated deep underground

Life on Earth may have developed below rather than above ground, reveal scientists

New research into the “deep biosphere” indicates that the first replicating life-forms on the planet may have originated deep underground

If all people lived in isolation for a year, would we wipe out all contagious diseases?’

Each person is teeming with bacteria, and we have a lot of viruses, too. A lot of the bacteria that live on and in our bodies can cause disease even if they aren't causing problems at the moment (for instance, E coli in the gut). So, no way. If each person lived in isolation for a year they'd still come out teeming with germs. But maybe it would theoretically wipe out some certain pathogen – I can't think of any, though. We actually need our bacteria, a lot of what goes on is a symbiotic relationship.

3.5 billion-year-old 'horribly smelly' fossil found in Australia is 'oldest ever complete example of life on Earth'

Researchers claim purple and green fossils would have smelt strongly of rotting eggs

Prime Minister David Cameron (L) walks with Conservative MP Nadhim Zahawi at the Conservative Party Conference during a television interview on October 5, 2010 in Birmingham, England

Every little helps Nadhim Zahawi: MP who claimed most on energy bills also received 31p for paperclips

As details emerge of full extent of Stratford MP’s claims, he apologises for ‘mistake’ making taxpayer foot bill to heat his stables

Preventing flu: Scientists find bacteria in Japanese pickled turnips which could boost immune system

Study on mice in Japan has led to start of promising human trials using new probiotic drink

Sample polymer ten and five pound banknotes

Filthy lucre: Bank of England's new plastic notes provide ideal environment for nature's nastiest bacteria

Filthy lucre just got a new meaning. Plastic notes of the type chosen this week by the Bank of England as the next generation of paper money have been found by researchers to be the host of choice for some of nature’s nastiest bacteria.

Bacteria growing naturally in the human gut could be playing a decisive role in determining whether someone becomes overweight or obese

Gut bacteria could be behind why some 'identical' people are fatter than others

Findings of research on mice could mean re-colonising obese people's guts with healthy, lean-triggering bacteria could help them lose weight

Scientific breakthrough unlocks secrets of microbes

A team in the US reveals how they were able to sequence the genetic code of 201 microbes for the first time

This is a powerful technology that can harm as well as benefit the human race

Synthetic biology could be used to create lethal strains of microbes or to 'weaponise' viruses

Getting on: the Earth from space

Watch out for the hot flushes (a few billion years away): Earth enters its mid-life crisis

The far-future Earth will be very hostile to life, says expert

The Food Standards Agency (FSA) was warned more than a decade ago that meat from cows showing symptoms of bovine tuberculosis (bTB) should be heat treated to safeguard consumers from the risk of infection

2002 warning on diseased beef was not acted upon by FSA

The Food Standards Agency (FSA) was warned more than a decade ago that meat from cows showing symptoms of bovine tuberculosis (bTB) should be heat treated to safeguard consumers from the risk of infection.

Plants make food from sunlight, then use constant calculations to ration food use through the night

It's the day (and night) of the Triffids! Research reveals that plants use complicated calculations to regulate their energy reserves

Putting anyone who has woken up at night to polish off the remaining goodies in their fridge to shame, new research shows that plants use maths to stave off hunger until the morning.

Scientists create protein 'superglue' from flesh-eating bacteria that could help detect cancer

The terms ‘flesh-eating bacteria’ and ‘good news’ do not normally go together, but a group of researchers from the University of Oxford believe they have engineered a protein from flesh-eating bacteria that acts as a molecular ‘superglue’ and could be used to help detect cancer cells.

That's deep: life found 11km below sea level in deepest known point on the surface of the Earth

Bacteria discovered in Mariana Trench, a gigantic chasm in the seabed which is big enough to swallow Mount Everest entirely

Woese in 1961 with a model of the ribonucleic acid chain

Professor Carl Woese: Scientist whose work revealed the 'third domain' of life

Carl Woese was a biophysicist and microbiologist who uncovered the "third domain" of life, with the detection of archaea. In doing so he redrew the taxonomic tree and proved that all life on Earth is related.

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Kenny Ireland, pictured in 2010.
peopleActor, from House of Cards and Benidorm, was 68
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A scene from the video shows students mock rioting
newsEnd-of-year leaver's YouTube film features staging of a playground gun massacre
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View from the Llanberis Track to the mountain lake Llyn
Du’r Arddu
environmentA large chunk of Mount Snowdon, in north Wales, is up for sale
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voicesForcing us to overhear dull phone conversations is an offensive act, says Simon Kelner
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i100This Instagram photo does not prove Russian army is in Ukraine
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The cast of The Big Bang Theory in a still from the show
tvBig Bang Theory filming delayed by contract dispute over actors' pay
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Morrissey pictured in 2013
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Sydney and Melbourne are locked in a row over giant milk crates
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The director of Wall-E Andrew Stanton with Angus MacLane's Lego model
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Day In a Page

Burgundy, the River Rhone & Provence – MS Swiss Corona - seven nights from £999pp
Lake Maggiore, Orta and the Matterhorn – seven nights from £899pp
Sicily – seven nights from £939pp
Pompeii, Capri and the Bay of Naples - seven nights from £799pp
Istanbul Ephesus & Troy – six nights from £859pp
Mary Rose – two nights from £319pp
Dress the Gaza situation up all you like, but the truth hurts

Robert Fisk on Gaza conflict

Dress the situation up all you like, but the truth hurts
Save the tiger: Tiger, tiger burning less brightly as numbers plummet

Tiger, tiger burning less brightly

When William Blake wrote his famous poem there were probably more than 100,000 tigers in the wild. These days they probably number around 3,200
5 News's Andy Bell retraces his grandfather's steps on the First World War battlefields

In my grandfather's footsteps

5 News's political editor Andy Bell only knows his grandfather from the compelling diary he kept during WWI. But when he returned to the killing fields where Edwin Vaughan suffered so much, his ancestor came to life
Lifestyle guru Martha Stewart reveals she has flying robot ... to take photos of her farm

Martha Stewart has flying robot

The lifestyle guru used the drone to get a bird's eye view her 153-acre farm in Bedford, New York
Former Labour minister Meg Hillier has demanded 'pootling lanes' for women cyclists

Do women cyclists need 'pootling lanes'?

Simon Usborne (who's more of a hurtler) explains why winning the space race is key to happy riding
A tale of two presidents: George W Bush downs his paintbrush to pen father’s life story

A tale of two presidents

George W Bush downs his paintbrush to pen father’s life story
Save the tiger: The day America’s love of backyard tigers led to a horrific bloodbath

The day America’s love of backyard tigers led to a horrific bloodbath

With only six per cent of the US population of these amazing big cats held in zoos, the Zanesville incident in 2011 was inevitable
Samuel Beckett's biographer reveals secrets of the writer's time as a French Resistance spy

How Samuel Beckett became a French Resistance spy

As this year's Samuel Beckett festival opens in Enniskillen, James Knowlson, recalls how the Irish writer risked his life for liberty and narrowly escaped capture by the Gestapo
We will remember them: relatives still honour those who fought in the Great War

We will remember them

Relatives still honour those who fought in the Great War
Star Wars Episode VII is being shot on film - and now Kodak is launching a last-ditch bid to keep celluloid alive

Kodak's last-ditch bid to keep celluloid alive

Director J J Abrams and a few digital refuseniks shoot movies on film. Simon Usborne wonders what the fuss is about
Once stilted and melodramatic, Hollywood is giving acting in video games a makeover

Acting in video games gets a makeover

David Crookes meets two of the genre's most popular voices
Could our smartphones soon be diagnosing diseases via Health Kit and Google Fit?

Could smartphones soon be diagnosing diseases?

Health Kit and Google Fit have been described as "the beginning of a health revolution"
Ryanair has turned on the 'charm offensive' but can we learn to love the cut-price carrier again?

Can we learn to love Ryanair again?

Four recent travellers give their verdicts on the carrier's improved customer service
Billionaire founder of Spanx launches range of jeans that offers

Spanx launches range of jeans

The jeans come in two styles, multiple cuts and three washes and will go on sale in the UK in October
10 best over-ear headphones

Aural pleasure: 10 best over-ear headphones

Listen to your favourite tracks with this selection, offering everything from lambskin earmuffs to stainless steel