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 ...

We might be wrong about the color of Mars, scientists say - Red dust has blown around the planet for billions of years, leading to its iconic hue ...

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 ...

This Thursday night, for the first time in nearly two-and-a-half years, our planet's faithful companion is going to get fancy ...

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 ...

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 ...

The moon will appear a striking reddish color in a matter of weeks when a magnificent total lunar eclipse ... A lunar eclipse ...