News According to reports, federal prosecutors will seek the death penalty against Boston Marathon bombing suspect Dzhokhar Tsarnaev

The twin blasts killed three people and wounded more than 260 others at the end of the city's marathon in April 2013

Mortensen: he was the principal designer of an economic tool called 'search theory'

Dale Mortensen: Economist who shared the Nobel Prize for his work on analysing unemployment and labour markets

Dale Mortensen shared the 2010 Nobel Prize in Economics for developing innovative methods to analyse unemployment and labour markets. He started out by wanting to know why some people remained unemployed when businesses had jobs they could not fill, and he wondered why similar jobs could have significantly different salaries.

Edward Snowden speaking during his dinner with a group of four retired US ex-intelligence workers and activists at a luxurious room in an unidentified location.

NSA 'developing' quantum computer to crack through most online encryption

Documents leaked by Edward Snowden allegedly reveal the US agency's plans

New prosthetic arm offers users the ability to feel what they touch

'Cuff electrodes' connect the prosthetic hand  to the amputee's nerves

Lin Ya-ting, a 23-year-old woman from Taiwan displays a rare ability of twisting her tongue into a flower shape

Can you conquer the hardest tongue twister ever created?

Psychologists say their nonsensical phrase left volunteers completely baffled, with very few able to say it 10 times

New camera takes 3D images in complete darkness

Low intensity pulses of visible light are fired at the target, with each photon corresponding to a single pixel in the image

Video: Self-assembling robots cubes jump and snap together

Palm-sized cubes use flywheels and magnets to snap together with future applications including emergency repairs and configurable furniture

Scientists 'bind photons together' to create new state of matter comparable to lightsabers

Under extreme temperatures photons were made to behave like molecules - a feat previously thought impossible

Where did the world's top CEOs go to university?

With the QS World University Rankings released today, current, former and would-be students have been scouring the list to see if their university has made the cut.

1. Massachusetts Institute of Technology: Private research university in Cambridge, Massachusetts, with a strong emphasis on science, engineering and technological education and research. Founded 1861.

So why is MIT number one in the world university rankings?

It’s topped the world university rankings for the second year running, but what gives Massachusetts Institute of Technology the wow factor?

1. Massachusetts Institute of Technology: Private research university in Cambridge, Massachusetts, with a strong emphasis on science, engineering and technological education and research. Founded 1861.

The top 100 universities in the world - QS rankings

Here are the top 100 universities in the world for 2013/14 compiled by the QS World Universities

NSA whistleblower Edward Snowden reportedly used a Lavabit account to tell human rights campaigners about the Moscow airport press conference last month

Secure email service 'used by Edward Snowden' shuts down in protest against snooping

Lavabit founder and CEO says no one should trust their private data to a US internet service provider

Scientists have successfully implanted false memories into mice

Is it Inception? Total Recall? No, science fact: False implanted in mice brains

Scientists manipulate brains of mice to make them think fake event really occurred

Bose: 'I never went into business to make money'

Amar Bose: Pioneer of high-end audio technology

By his own account, Amar Bose was an inventor first, a teacher second and a businessman third. But the company he created not only revolutionised audio technology but made his surname alone a shorthand for high-end sound systems around the world.

Dr Bose’s legacy: the real sound of music

It was a disappointing stereo that started off Amar Bose. When he bought it in the 1950s, Dr Bose – at the time a student at the Massachusetts Institute of Technology (MIT), near Boston – was frustrated to find the sound quality was a pale comparison to listening to live music.

Dzhokhar Tsarnaev pleads not guilty to Boston bombing

His arm in a cast, his accent changed, Dzhokhar Tsarnaev pleads not guilty to Boston marathon bombing charges

First appearance since arrest for attack suspect whose brother died in shoot-out

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