While it may seem crazy, the idea that millions of years ago the Earth looked purple is gaining traction. Yes, you read that right, aliens might well have known us as ‘The Purple Planet’.

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Before plants ruled, Earth may have glowed violet. The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple.

Martian dust is mostly rust. Mars’s famed color has captivated humankind for centuries, earning its nickname of the ‘Red ...

Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...

Ready for a show? On the night of March 13 into the early hours of March 14, a total lunar eclipse will occur as the moon ...

Imagine a world where the vast oceans glimmered not in deep blue, but in brilliant green. A time when Earth’s seas, ...

This Earth Day, celebrate our planet and promote sustainability with printable Earth Day bookmarks to color. Whether you’re coloring them yourself, sharing them with others, or using them as ...

Although the celestial body is located 140 million miles away from Earth, there’s ... and dusty planet. Its dust is the key to its iconic red color. Now, scientists say there’s more to the ...

Ferrihydrite, a water-rich iron mineral, plays an important role in giving the red planet its signature hue, according to the ...

A total lunar eclipse, the first in nearly three years, will be visible across the U.S. the night of March 13 into early ...

Experts have claimed it could be the first time all planets including Earth have been captured in a single image.