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A heart cockle shell has been found to let in light through a design that resembles fiber optic cables. This could inspire everything from helping coral survive to designing new camera lenses.

Scientists have identified two types of brain cells in the abdomen that appear to control different aspects of digestion.

A study of cells from 84 brains finds that Alzheimer's has two distinct phases, and that one type of neuron is especially vulnerable.

Critics say it’s time to close it or diminish its output.

Join leading paranormal investigators Dave Hanson, Tim Mountain, and Karl Sherlock of Pacific Paranormal Investigations for a discussion about ghosts and paranormal activity in San Diego including the city's most scary haunts. They will discuss how serious paranormal investigations rely less on ghostly methods, such as séances, psychic readings or Ouija boards, and more on evidentiary and investigative analysis to uncover rational and objective causes for anomalies thought to be paranormal. From 6 to 6:30 before the talk, there will be a display of modern ghost hunting technology and equipment.

The EPA's environmental justice office potential closure hits over-polluted communities, yet they fight on.

As many federal governments slow — or reverse — climate action, Austria's capital, Vienna, wants to show how cities can take the lead.

As a new Trump administration signals a retreat on climate action, China is stepping up. China is the biggest producer of climate technologies like electric vehicles and solar panels.

NPR's Scott Simon remembers Seuk Kim, a volunteer animal rescue pilot who died in a crash earlier this week, transporting several dogs.

Two astronauts were launched on a five-month mission that also hopes to rescue two NASA astronauts left behind on the ISS. The four are expected to return to Earth in February.