Dr. Olney, a leading researcher of A.L.S., commonly known as Lou Gehrig’s disease, learned in 2004 that he himself had it.

The spill, which affected 200 miles of the Longjiang River in southern China, was caused by two companies that accidentally released tons of cadmium.

A search for common ground among people deeply split over greenhouse-driven global warming.

Suspicious of government initiatives, protesters linked to the Tea Party are denouncing all manner of measures they equate with a 1992 United Nations resolution, Agenda 21.

Mr. Boisjoly wrote a portentous memo six months before the Space Shuttle Challenger’s explosion, warning that if it was too cold, seals connecting sections of the shuttle’s rocket boosters could fail.

Counting Isle Royale moose can be a tedious task that requires great dedication. But each moose has its own life story.

NASA on Thursday released a video taken as one of the twin spacecraft in its Grail mission passed over the far side of the Moon.

A coal-backed group pushes for the cancellation of a lecture by a Pennsylvania climate scientist.

In the village of Fessenheim, an aging nuclear plant stirs both protests and support over the use of nuclear power across France.

An article raises the issue of whether the Sierra Club's support of natural gas as a "bridge fuel" was influenced by donations from the gas industry.

Researchers find that extreme cold induces acute stress in coral but that heat is ultimately more lethal.

With declining insurance reimbursements, more doctors are expanding their practices to include things like breast augmentation and liposuction paid for out-of-pocket by patients.

Three people living with hemophilia talk about how the condition affects their lives.

A concept that didn’t seem to need naming until quite recently.

A trove of wax cylinder phonograph records contains the only known recording of Otto von Bismarck.

The diamond holds a different allure for those studying the history of the Earth.

Intel Science Talent Search semifinalist Samantha Garvey got a grand tour of Washington this week.

A vast majority of babies are female, but the disparity fades as a factor by the time green turtles are old enough to breed.

A paper on a theory of immunity led a doctoral student from Moscow to groundbreaking work in the United States.

A drug that helps the effects of eye-dilating drops fade faster exists, but is no longer sold in the United States.