Using 3-D printers to replace a hand

Ethan Brown, 8, adjusted his Cyborg Beast hand. Materials for a prosthetic hand made on a 3-D-printer can cost as little as $20 to $50. Some specialists say they work just as well, if not better, than devices that cost much more.

Kevin Liles/New York Times

The proliferation of 3-D printers has had an unexpected benefit: The devices, it turns out, are perfect for creating inexpensive prosthetics.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2015/02/14/BostonGlobe.com/Obits/Images/200_val_fitch-478.jpg Val Fitch, 91; won Nobel in physics for Big Bang work

Mr. Fitch shared the Nobel Prize for detecting a breakdown in the overarching symmetry of physical laws.

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Astronauts finish tricky cable job

The spacewalkers routed several hundred feet of power and data lines for new crew capsules commissioned by NASA.

Astronaut cleared for next spacewalk

US astronauts will venture back out this weekend, despite a helmet water leak on their previous trip outside the ISS.

Portland, Maine

Scientists cite dramatic sea level rise off coast

Researchers say sea levels off of Portland, Maine, rose an “unprecedented” 5 inches during 2009 and 2010.

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Ideas

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2015/02/27/BostonGlobe.com/Ideas/Images/snowFinal-534.jpg Will Boston’s crazy snowfalls make people leave?

An endless winter has everyone threatening to flee for good. Who might really go — and how it could shift the population.

Instagram

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/12/17/BostonGlobe.com/Metro/Images/a4a68392593311e3a80a0a154a02c3a8_7-7210--90x90.jpg Boston Globe Instagram photos

A live stream of Instagram posts from The Boston Globe photo department.