Add Yahoo as a preferred source to see more of our stories on Google. In 1408, Chinese astronomers and court officials observed an especially bright object in the sky that appeared for about ten days, ...

Each week, Astronomy magazine Senior Editor Michael E. Bakich, a master at explaining how to observe, posts a podcast about three or more objects or events you can see in the sky.

When scientists discovered a Jupiter-sized exoplanet in the Vulpecula constellation, they knew the weather there wasn't great. That's because HD 189733b orbits its star every 2.2 days at a speed of ...

Here's what you'll learn when you read this story: At dusk on a late October night in 1408, something mysterious lit up the skies above China. Ming Dynasty astronomers who recorded the phenomenon ...