Science

Four-stranded ‘quadruple helix’ DNA structure proven to exist in human cells

Researchers have proved that four-stranded ‘quadruple helix’ DNA structures – known as G-quadruplexes – also exist within the human genome...

Science supports sex addiction as a legitimate disorder

UCLA researchers test proposed criteria for diagnosing ‘hypersexual disorder’...

Molten entry

Molten entry

No padlock or chain can withstand a blast from a new torch being developed for police and soldiers....

Magnetic muscle

Magnetic muscle

Researchers at Sandia National Laboratories use the Z machine to study mysteries of the Universe....

Nasa’s new Mars mission

Nasa’s new Mars mission

Nasa’s newly approved mission to Mars, InSight, will seek clues to planetary creation....

Noctilucent cloud

Noctilucent cloud

Theories abounded over the origin of noctilucent clouds (NLCs), but a Nasa mission has found a clue......

How did microbes make Earth habitable?

The one thing that most people think they know about natural navigation is not true: moss doesn’t only grow on the south side of trees....

Pathogen airports

Pathogen airports

Like people, contagious diseases use airports to jump around the world....

Visitor’s guide to . . . the human microbiome

Tens of thousands of species of bacteria colonise your body. Here is a visitor’s guide to . . . the human microbiome....

Build a spectrometer: see the light

It takes just a few hours and no more than a couple of hundred rand to build your own spectrometer...

Record-setting asteroid flyby past Earth on 15 February

On 15 February, an asteroid about half the size of a football field will fly past Earth only 27 681 kilometres above our planet's surface...

Titan gets a dune “makeover”

While most of Saturn's moons display their ancient faces pockmarked by thousands of craters, Titan – Saturn's largest moon – may look much younger than...

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