A deep-sea canyon 155 miles off Argentina contained 29 pieces of human garbage, showing how far plastic pollution can reach.

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which are each about the size of Earth’s Grand Canyon. By Kenneth Chang Kenneth ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. About 3.8 billion ...

Green forests aren’t the only natural landscapes worth exploring. If you’re looking for a change of scenery, consider trekking through one of the many majestic canyons managed by our national park ...

In 2015, when NASA's New Horizons spacecraft encountered the Pluto-Charon system, the Southwest Research Institute-led science team discovered interesting, geologically active objects instead of the ...

Should the Bering Sea canyons be closed to fishing to protect sensitive habitats? Here are a few FAQs about the science and the decision-making. The Bering Sea off Alaska is home to an enormously ...

In 2015, when NASA's New Horizons spacecraft encountered the Pluto-Charon system, scientists discovered interesting, geologically active objects instead of the inert icy orbs previously envisioned.