The dwarf planet has a strange orbit and tilt — what gives?

Forget what you learned in school. The solar system isn't just a flat disc of planets it's a 3D bubble moving through space. This video explains why all planets orbit in the same flat plane and what ...

A step-by-step explanation for why planets that orbit a double star eventually enter an unstable orbit and disappear from the system. Of the more than 4,500 stars known to have planets, one puzzling ...

At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.

Why is it so rare to find exoplanets orbiting two stars, also called circumbinary planets (CBPs)? This is what a recent study published in The Astrophysical Journal Letters hopes to address as a team ...

In theory, it could happen – one of the very first solutions to the three-body problem was this scenario. But it is very unlikely to be stable over time. You need the stars to have near equal mass and ...

So why are there no moons with natural satellites of their own? Matt Bothwell University of Cambridge, UK. The very short ...