Meteor showers can be spectacular, but predicting when and where they’ll appear in the night sky has often been a challenge.

Here’s a little spoiler for next month’s Cosmic Calendar: early May will see the return of the Eta Aquarid meteor shower. The ...

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

"Rather, the Sun and planets all orbit their common center of mass, known to scientists as the solar system barycenter." The Solar System barycenter is the proverbial point where the Greek god ...

"Rather, the sun and planets all orbit their common center of mass, known to scientists as the solar system barycenter." The solar system barycenter is the proverbial point where the Greek god ...

Schematic diagram showing how the inclination of the comet orbit changes when the comet moves first around the barycenter of the solar system (*), then around the center of the Sun (•) when ...