Guide to Space
Will The Sun Explode?
All stars die, some more violently than others. Once our own Sun has consumed all the hydrogen fuel in its…
When Will We Become Interstellar?
Dr. Ian O'Neill is one of the coolest scientists we know, so we sat him down at the YouTube spaces…
Where Did Saturn’s Rings Come From?
Dr. Kevin Grazier was a planetary scientist with the Cassini mission for over 15 years, studying Saturn and its icy…
Is the Solar System Really a Vortex?
The short answer? No. Not in the way that a popular animated gif insinuates, at least. If you're even a…
What Is The Big Rip?
Dr. Thad Szabo is a professor of physics and astronomy at Cerritos College. He's also a regular contributor to many…
Can Stars Collide?
Imagine a really bad day. Perhaps you’re imagining a day where the Sun crashes into another star, destroying most of…
Is Everything in the Universe Expanding?
The Universe is expanding. Distant galaxies are moving away from us in all directions. It’s natural to wonder, is everything…
Where Should We Look for Life in the Solar System?
Emily Lakdawalla is the senior editor and planetary evangelist for the Planetary Society. She's also one of the most knowledgeable…
Why Does the Moon Shine?
We enjoy the light from the Sun during the day, and then the comforting glow of the Moon at night.…
Where Does Gravity Come From?
Gravity. The average person probably doesn’t think about it on a daily basis, but yet gravity affects our every move.…