Deep Bahattachar

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One year on from the Higgs boson find, has physics hit the buffers? Despite the success of the Large Hadron Collider, evidence for the follow-up theory – supersymmetry – has proved elusive Photograph: Harold Cunningham/Getty Images

Passport photographs of celebrities Photograph: Brad Barket/Getty Images

Prehistoric DNA sequencing: Jurassic Park was not so wide of the mark: Mapping the genome of a horse from 700,000 years ago goes far beyond what was thought possible with DNA sequencing. Photograph: Tierfotoagentur/ Alamy

Top 10: Common misconceptions among Britons about Britain

Ten of the most common misconceptions among the British public have been highlighted, ranging from vastly over-estimating the teenage pregnancy rate …

Boris Johnson accused of sexism after saying women go to university to find a husband

Boris Johnson has set Twitter a-chattering once again by offering an explanation as to why more and more women are attending university – to find a …

Youngsters with no regular bedtime or who go to sleep later than 9pm do poorly at reading and maths, research suggests: The findings on sleep patterns and brain power come from a UK study of more than 11,000 seven-year-olds. Can you relate to this problem? If so, how do you cope?

Today's front page: At least 51 protesters killed in Egypt as army opens fire 'like pouring rain' Ed Miliband pledges to end Labour's 'machine politics' Sir Andy Murray? David Cameron backs knighthood Just 90 minutes' sleep, then Andy Murray bandwagon rolls on

Latest report from Patrick Kingsley in Cairo: 'Massacre' of Morsi supporters leaves Egypt braced for new violence Muslim Brotherhood condemns killings in Cairo, which came hours before interim president set out election timetable + live updates here: Photograph: Khaled Elfiqi/EPA

Painted with numbers: mathematical patterns in nature

Seven-year-old sends this letter to Nasa. See how they reply:

Woolly mammoth arrives in Japan from Russia

Daily chart: In some countries the need to grease the palms of officialdom remains a depressing fact of life. Bribery is most widespread in poorer, badly run parts of the world in Africa and the Middle East: the highest rates are reported in Sierra Leone (84%), Liberia (75%) and Yemen (74%). Today's interactive chart reveals the countries where bribery is most widespread

Prometheus unbound

PROMETHEUS, a Titan bound to a rock by Zeus, endured the daily torture of an eagle feasting on his liver, only to have the organ regrow each night. …

Cell Biology

Largest building in the world opens in China – complete with indoor seaside Chengdu's New Century Global Centre has its own beach resort, cinemas, shops – and a replica Mediterranean village Photo: Inside the New Century Global Centre, Chengdu, China Credit: Entertainment and Travel Group

Wimbledon exposed the sexism women face – as players and girlfriends

While Andy Murray may have rewritten the enduring British sports narrative of noble failures and humiliating disappointment in the space of three …

"The desire is to simplify the design and to simplify the manufacturing, because these are the ways to reduce the costs" The basic design for Europe's next generation rocket, the Ariane 6, has been selected. It will be powered by two solid-fuelled lower stages and incorporate the liquid-fuelled upper-stage currently being developed as an upgrade for the existing Ariane 5 vehicle. The target is to try produce and launch Ariane 6 for no more than about 70m euros (£60m/$90m). (Picture courtesy of ESA)

Welcome to the new (and fast-growing) ecosystem of mobile business apps

Over the last few months, I’ve had several conversations about mobile business applications that remind me of early discussions and debates around …