Today on New Scientist: 4 January 2013

Moulding fungal furniture the (un)natural way

Artist Paul Ross sculpts fungus with light, air and his own creative concoctions of chemicals. The result? Fabulous furniture

Vesta's crater carbon came from asteroids

A new map of dark material in Vesta's craters shows that the huge rocks that formed them brought carbonaceous material along for the ride

Zoologger: She's mine! Wasps tag virgins for future sex

Faced with intense competition from their peers, male Ooencyrtus kuvanae wasps line up a harem of partners ahead of time

Unmasking the cyber saboteurs, whoever they are

Technology that maps the family trees of malware could deter governments from Stuxnet-style attacks

AI 'lifeguard' could save young swimmers from drowning

An artificial-intelligence system is learning to recognise the panicky movements people make when they are drowning

Your consciousness is your affair, says drug crusader

We need to probe the effects of narcotics and rewrite our drug laws, says Amanda Feilding, who set up her own think tank to do just that

Feedback: Magnetic socks for cyclists

The wonders of performance-enhancing socks, non-existent food, motionless electrons, and more

Titan holds clue to faint young sun paradox

The early Earth should have been icy due to a colder sun, but an atmosphere like that of one of Saturn's moons could have warmed it

Rewinding reality: How you can change the past

Watch how you could alter events after the fact thanks to peculiar quirks of quantum physics

Stomach sucker patent brings yuck factor to dieting

Instead of restricting stomach volume with gastric bypass and banding techniques, why not let morbidly obese people eat all they can?

Soft, strong and long: The story of toilet paper

If the medical establishment had got its way, we would still be wiping our behinds on newspaper

Mapping malware's genome to fight future attacks

Uncovering the family resemblances between nasty computer bugs could help stop them in their tracks

Take a peek inside the brain's filing cabinet

Brain scans show where the brain stores and categorises more than 1000 words

Cloud of atoms goes beyond absolute zero

The existence of negative temperatures on the Kelvin scale could help us understand dark energy as well as revise the thinking about what temperature really is

Unique meteorite hints Mars stayed moist for longer

Bought by a collector for what turned out to be a bargain price, the water-laden space rock holds clues to the ancient Martian surface

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