The crowing of a red junglefowl, ancestor to farm chickens, is shorter.

A final word, in alphabetical order, to bid farewell to the Science Times podcast.

Can exercise change our DNA?

Natural gas seems to be better for the environment than coal because of its reduced carbon emissions, but environmentalists say it may not be better after all.

Nuclear energy could help stem climate change, but economic conditions aren’t favorable for many existing nuclear power plants.

In California, young patients can lose themselves in a digital dreamworld during their grueling treatments.

Scientists arrived at a limit of 3.6 degrees Fahrenheit for Earth’s temperature to increase, arguing anything above that will cause significant damage.

Using modern digital processing, researchers have given sound to some of the earliest written recordings of pulses and heartbeats.

James B. Garvin, a chief scientist with NASA, discusses the history of Mars exploration, current technological advances and what is still to come in understanding our planetary neighbor.

A robot exhibit at New York City’s Museum of Math shows how simple interactions lead to large-scale, organized behavior.