Several billion years ago, tiny little creatures called cyanobacteria may have changed the colour of the ocean.

A 2014 photo shows a massive, iceberg-littered pool of vibrant blue meltwater sitting alone on top of a glacier in Alaska. Similar "melt ponds" are becoming increasingly common in the Arctic due to ...

"Our GhostRiders captured the beauty of our home planet during another Earth orbit burn." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Firefly ...

(via PBS Space Time) Planet Earth is the jewel of the solar system—the shimmery blue oceans, the verdant green forests, the wispy whimsical cloud formations. Saturn ...