Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities. These are the dwarf planets—small but mighty members of our solar system that ...

As residents of Earth, we’re well accustomed to the fact that there are 24 hours in a day. That’s approximately how long it takes the planet to move on its axis relative to the sun, known as a solar ...

Think you know your way around the solar system? From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn't just ...

Quizmaster Chris Farnell is back with his final (for now) guest appearance in the Den of Geek Weekly Quiz slot. Show him what you know about sci-fi movie planets, and share your successes and failures ...

The Sun is so giant that approximately one million Earths could fit into it. There is no sound in space because it is a vacuum. A day on Venus is longer than a year on Venus. Also, did you know that ...

Which planet is about 93 million miles from the sun? This planet is named after the Roman goddess of love and beauty. Titan, this planet's largest moon, is larger than the planet Mercury. This planet ...

Doki-Doki Universe developer HumaNature Studios is releasing downloadable content today for the kooky puzzle adventure game, including dozens of new quiz questions and two new story planets. The ...

Now that Disney’s piloting the “Star Wars” ship, we’re going to be dealing with Star Wars and Star Wars nostalgia for the rest of our lives. [deep breath] okay. We can do this. If you can name the ...

From ancient civilizations charting the stars to modern-day horoscopes guiding daily decisions, our relationship with the cosmos is as complex as it is enduring. But how well do you really know the ...