This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most urgent threats facing our environment, from climate change to ...

JACKIE. YEAH. GOOD AFTERNOON. IT’S A REALLY NICE DAY OUT HERE. OF COURSE, WE’VE GOT THE SUN SHINING ON THIS EARTH DAY. A LITTLE BREEZY, SO MY HAIR HAS BEEN KIND OF GOING HERE. THERE AND EVERYWHERE. A ...

Planet Earth harbors a number of astonishing facts that remain unknown to many despite tremendous scientific progress, as ...

While Earth Day, observed annually on April 22, may not be a major holiday that’s widely celebrated outside of classrooms, it’s more than worthy of honoring. After all, without Earth, where would we ...

The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

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Earth researchers have spent generations decoding the Grand Canyon, turning its cliffs and chasms into one of the clearest records of our planet’s deep past. These nine Grand Canyon facts, grounded in ...

An asteroid capable of flattening a mid-sized city could potentially collide with Earth eight years from now, as its orbit around the sun briefly intersects the path of our planet. Named 2024 YR4, the ...

The moon is our constant companion and the only natural object that always orbits Earth. It's about four times smaller than Earth and its gravity is much weaker, which is why astronauts bounce around ...