Earth's oceans may have displayed a very different color several billion years ago. This hypothesis emerges from a recent ...

Printable Earth Day bookmarks are a fun way to celebrate the planet and encourage kids to read at the same time. These Earth Day printable activities work well at home or in the classroom, giving kids ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

Pettit posted his striking footage on social media on Tuesday. The American astronaut used a wide-angle lens to get the ...

Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...