"This is the largest solar radiation storm in over 20 years," the Space Weather Prediction Center said on Monday.

Our planet has experienced dramatic climate shifts throughout its history, oscillating between freezing "icehouse" periods and warm "greenhouse" states.

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational pull serves as a stabilizing force for our home’s orbit, tilt and position from the sun. Without it, life could potentially have been a lot different from what we know today.

The sun sure has woken up this week, unleashing a powerful X-class solar flare on Jan. 18 that hurled a colossal, fast-moving coronal mass ejection (CME) directly toward Earth. That CME has now arrived, triggering severe (G4) geomagnetic storm conditions far earlier than initially forecast.

The far-flung “Project Anchor” conspiracy theory claims that NASA is preparing for Earth to “lose” gravity on August 12, 2026, is circulating on social media.

New research suggests that the Earth's solid inner core is softer and more dynamic than previously thought, changing ideas.

Here are the stories of five people or groups whose environmental actions are driven by their faith. They're connected by a desire to do good for the Earth, following the writings in their religious texts or the teachings of their spiritual leaders.

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing their thick atmospheres.