© Manjari Sharma

Manjari Sharma is a freelance photographer based in New York City, originally from India. For the last few months, she has been inviting people into her apartment to photograph them in her shower. “This photo project has given rise to some of the fastest, most disarming relationships with people I have formed in this country,” Sharma writes. More images from her “Shower Series” are viewable on her web site.

© Gist Croft and Mackenzie Weygandt, Columbia University and Project ALS, New York, N.Y.

Amyotrophic Lateral Sclerosis (ALS, also known as Lou Gehrig’s Disease) motor neurons. The stem cells used to generate these motor neurons were induced Pluripotent Stem (iPS) cells made from the skin cells of an 83-year-old ALS patient.

This image won tenth prize in the Olympus BioScapes Digital Imaging Comptition, an international competition of microscope imagery. The winners were announced November 18, 2009. This year, the competition received nearly 2,000 entries from 62 countries. All images and the names of the top winners and Honorable Mentions may be viewed online, and some of images will be part of a traveling exhibition.

A selection of winning images follows.

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All Photographs © Paul Nicklen / National Geographic

A young polar bear leaps between ice floes. Barents Sea, Svalbard, Norway. These photographs are from Paul Nicklen’s recently released book, Polar Obsession (National Geographic Focal Point, $50), the culmination of 15 years of work photographing wildlife in the arctic and Antarctica. The book celebrates the arctic and Antarctic ecosystems and discusses the urgent need to halt global warming, which threatens their existence. For more from Nicklen on Polar Obsession, see our recent interview with the photographer. (more…)

All photos © Tim Grimshaw

Above: The Empire State Building in New York City as viewed from the top of Rockefeller Center.

All of these photos were taken with a tilt/shift lens to control the depth of field. View more of Tim Grimshaw’s Manhattan series here.

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© David Tribby

A train car and cooling tower in Michigan City, Indiana. View more of Tribby’s work on Flickr.