Earth

Germany's Isar and RFA, France's Maiaspace, Spain's PLD Space, and UK-based Orbex have been pre-selected for ESA's €169 million launcher initiative.

Our planet has been rotating at its fastest since records began in 1973.

A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park.

Lightning-ignited Grand Canyon wildfires burn tens of thousands of acres, as NOAA’s GOES satellites continue to monitor the fires.

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon.

The astronaut was able to capture the lake reflecting direct sunlight at the camera.

In the latest attack on science by the Trump administration, researchers at the National Snow and Ice Data Center will no longer receive data from a fleet of military satellites.

Humans have used the stars to navigate, keep time, and understand our place in the universe.

Earth is at its farthest point from the sun on July 3. So why are temperatures so high across the U.S.?

A plume of molten rock deep beneath eastern Africa is pulsing upward in rhythmic surges, slowly splitting the continent and potentially marking the birth of a new ocean, a new study reports.