What If on MSN

The true scale of the largest objects in the universe

Imagine shrinking Earth to the size of a small ball to reveal just how vast the Universe is. If it were 12 centimeters wide, ...
BBC Sky at Night Magazine on MSN

Double suns, more worlds: Tatooine-style planets with two sunsets are more common than thought, says brand new study

Planets with two suns are more likely to thrive than planets with only one sun, say astronomers ...
EurekAlert!

We finally know how the most common types of planets are created

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune orbit most stars. Oddly, our sun lacks such a planet. That’s been a source ...