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February's issue of Scientific American features a beautiful close-up image of a placenta taken by Norm Barker, associate professor of pathology and art as applied to medicine at the Johns Hopkins University School of Medicine. Barker specializes in photo-microscopy and natural science photography, and his work appears in the permanent collections of more than 40 museums, including the Smithsonian, the American Museum of Natural History and the Science Museum in London.

The placenta is unique among organs--critical to human life yet fleeting.

Bats have an image problem.

Forget leap years, months with 28 days and your birthday falling on a different day of the week each year. Researchers at Johns Hopkins University in Maryland say they have a better way to mark time : a new calendar in which every year is identical to the one before. [More]

Forget leap years, months with 28 days and your birthday falling on a different day of the week each year.

Steve Jobs, cofounder of Apple Computers who died this week, had a reputation as a passionate business leader and a modern folk hero. In 1999 one of Jobs's friends said, "He is single-minded, almost manic, in his pursuit of excellence." That's certainly a character trait we scientists can admire. Let's take a look at another one of Job's traits that we scientists can benefit from emulating.

Steve Jobs, cofounder of Apple Computers who died this week, had a reputation as a passionate business leader and a modern folk hero. In 1999 one of Jobs's friends said, "He is single-minded, almost manic, in his pursuit of excellence." That's certainly a character trait we scientists can admire

Johns Hopkins infectious disease experts tout evidence of circumcision's benefits in light of 18 states cutting funding for procedure

A Johns Hopkins University professor was one of a trio of scientists awarded the 2011 Nobel Prize in physics Tuesday for discovering that the universe is expanding at a faster and faster rate, contrary to science's conventional wisdom.

Surgically repairing delicate soft tissues like those on the face after an injury or illness is a tricky business. Surgeons can fix bones, joints and other body parts--but lips and cheeks simply aren't as repairable. But they soon may be, if a new material developed by medical researchers becomes commercially available.

Move over Juvederm and Restalyne. Make way for a new skin filler. Johns Hopkins researchers say they have improved the technology on popular injectable hyaluronic gels that gloriously restored skin’s volume and wiped away wrinkles -- but sagged or faded away after about a year

It seems perfectly natural to expect that two motorists who depart from the same location and follow the same directions will end up at the same destination. But according to a Johns Hopkins University mathematical physicist, this is not true when the "directions" are provided by a turbulent fluid flow, such as you find in a churning river or stream. Verifying earlier theoretical predictions, Gregory Eyink's computer experiments reveal that, in principle, two identical small beads dropped into the same turbulent flow at precisely the same starting location will end up at different – and entirely random – destinations.

Johns Hopkins researchers say discovery could help them identify patients at greatest risk - and lead to new treatments

Measles has been all but eradicated in the developed world, but it still claims more than 160,000 lives in developing countries. Sub-Saharan Africa, in particular, has been hit hard in the past few years.

Charles Limb, a hearing and ear surgeon at Johns Hopkins University School of Medicine, studies jazz as a means of understanding what goes on "under the hood" when a musician is improvising.