Gravity is what holds Earth in orbit around the sun and keeps us from floating off into space. Unfortunately, it can — quite ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Deep inside Earth ...

Oh, how we love Mother Earth, don't we? Earth is our home and has given us so much — green grass, sunny skies, breathtaking sunsets and beautiful snow — so why not celebrate it by taking one day to ...

'We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to where the sun and planets were forming.' When you purchase through links on ...

Here’s how to celebrate Earth Day in the Philadelphia region, from litter cleanups to seed planting and other events. Families enjoy Earth Day at the Schuylkill Center for Environmental Education on ...