As Venus approaches its inferior conjunction, astrophotographers have snapped some striking shots of the crescent planet ...

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 ...

Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising temperatures are once again causing the world’s oceans to turn green.

Exciting new research suggests there are four miniature planets orbiting Barnard’s Star, each thought to be just 20 to 30% ...

Take a look at all of our Printable Coloring Bookmarks for more fun. April 22nd marks Earth Day, a global event that celebrates our planet and raises awareness about environmental issues.

A new study by Rice University researchers Sho Shibata and Andre Izidoro presents a compelling new model for the formation of ...

Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

The upcoming total lunar eclipse in March is the first since November 2022. Here's what to know about viewing it from Iowa.

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...