The beloved butterflies had fallen to critical levels in recent years. Experts weigh in on what might be causing their remarkable return. On a cold November morning in California, a photographer holds ...

There could be a gaping hole in the Big Bang theory. Or rather, a giant, colossal black-hole caused by the collapse of a four-dimensional star. One of the main problems with the Big Bang is that the ...

At the 1998 Winter Olympics in Nagano, Japan, snowboarding made its debut as an Olympic sport. No longer relegated to the fringes, snowboarders took to the snow-capped peaks of Mount Yakebitai, and 26 ...

(This program is no longer streaming). Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. But we know little about how their successors, the mammals, ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. To find out, we imagined a souped-up spacecraft that could ...

The planet looks blue from space, but new research shows that most of Earth's water may actually be deep underground. Share Earth is a jewel of the solar system, painted blue by the vast oceans that ...

They haven't got no noses, The fallen sons of Eve; Even the smell of roses Is not what they supposes; But more than mind discloses And more than men believe. —from "The Song of the Quoodle," G.K.

Patterns of lines and dots associated with specific animal species in cave art may point to an early writing system. The four dots painted across the back of this aurochs (wild ox) in the Lascaux cave ...

An electrical engineer works on Form Energy's 2022 battery module in the company's lab in Berkeley, California. Image courtesy of Form Energy Share Weirton, West Virginia has iron in its blood. The ...

Researchers visit an ancient pyramid in Peru in NOVA's Ancient Builders of the Amazon. Image Credit: Federico Pardo for NOVA/GBH For 50 years, NOVA has taken viewers on adventures through time and ...

Air pollution is an issue around the world, though its effects are not evenly distributed. Share What do a bag of potato chips thrown out in Manhattan, a lightbulb unwittingly tossed in Philadelphia, ...

In a contest for the least contentious statement a person can make, “What goes up must come down” is surely a strong contender. Of the four known fundamental forces—gravity, the electromagnetic force, ...