Earth Day celebrates its 55th birthday today. Since 1970, April 22 has become a day to reflect on the environment, and for people to share their concerns for the planet. Founded by a US senator, Earth ...

For most of deep time, spreading ridges released more carbon than volcano chains, changing how we interpret Earth’s climate history.

An asteroid has effectively become a long-term "quasi-moon" to Earth, shadowing our planet in a shared solar orbit until the year 2083, according to recent findings published in IOP Science.

Scientists announced Monday that Earth is rotating slightly faster than normal, resulting in what is expected to become the second-shortest day ever recorded since precise atomic timekeeping began.

COLUMBIA, S.C. — As the year unfolds, we experience the distinct changes in weather that mark the passage of time: the freshness of Spring, the warmth of Summer, the crispness of Autumn, and the chill ...

“All the datacentres that run the internet, communications and financial transactions, they are based on precise timing. We also need a precise knowledge of time for navigation, and particularly for ...

Satellite sensing enables new discoveries about climate change, natural disasters, and civilization. Researchers are using satellites to create prediction models of watersheds. Mapping technology has ...

How did the “Blue Marble,” as it is now known, come to be? Host Vincent Brown learns just how extraordinary a technical feat it was for Apollo 17 astronauts to snap the photograph in 1972, and how ...