A question that has long puzzled scientists is how our Milky Way galaxy which has an elegant spiral shape with long arms, took this form.

A UN climate summit in Madrid risked collapsing Saturday after all-night negotiations between countries left them more divided than ever over on how to fight global warming and pay for its ravages.

More than 27,000 pigs have died in a hog-cholera epidemic that has struck Indonesia, with thousands more at risk, an animal welfare official said.

Change is afoot for the official measuring stick used to size up big places in America.

Deforestation in Brazil's Amazon in November surged by 104 percent compared to the same month in 2018, according to official data released Saturday.

South African farmer Steve Bothma heaved a sigh of relief when the weatherman finally predicted rain.

Thousands of marine worms dubbed "penis fish" for their shape and color appeared this week on a California beach after a strong winter storm exposed them.

Mitochondria, tiny structures present in most cells, are known for their energy-generating machinery. Now, Salk researchers have discovered a new function of mitochondria: they set off molecular alarms when cells are exposed to stress or chemicals that can damage DNA, such as chemotherapy. The results, published online in Nature Metabolism on December 9, 2019, could lead to new cancer treatments...