The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

Three celestial bodies are preparing to meet up for one night in September in a cosmic conjunction that should be widely visible in the sky.

And speaking of the break of dawn, that happens nowadays at around 5:15 a.m. local daylight time. And that's the time for ...

A NASA spacecraft survived extreme radiation and captured rich images of the most volcanic world in our solar system, the tortured moon Io.