Spring, summer, fall and winter – the seasons on Earth change every few months, around the same time every year. It's easy to take this cycle for granted here on Earth, but not every planet has a ...

Scientists have discovered a rare six-planet system where all planets orbit their star in perfect mathematical harmony.

But this is the first time such a resonance has been found for a meteor stream. Researchers think the intense showers of the early 1990s were caused, at least in part, when Earth passed through a ...