In addition to refraction hastening sunrise and delaying sunset, there is another factor that makes daylight longer than night at an equinox: sunrise and sunset are defined as the times when the first ...

On September 22, our satellite passes in front of the famous star cluster M45 in a rare, breathtaking event, producing ...

For more details and timing of the event to determine when to watch and which stars you’ll see disappear, check out our ...

A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

The upcoming Full Harvest Moon on Sept. 17 will feature a partial lunar eclipse. Here's what to expect and how to see it.

China set to unveil long-term vision for space science The Chinese Academy of Sciences is aiming to accelerate its progress ...

A possible bright comet, a southern hemisphere solar eclipse, and a half-dozen meteor showers (including one that might ...