Figuring out the day length of Earth is more complicated than you might imagine. While on average a day is 24 hours long, ...

The distant planet Neptune stands still against the background stars of Pisces in the early-morning sky, still visible close ...

There will be several chances to see the shadow of Saturn's largest moon, Titan, pass across the ringed planet's Earth-facing ...

Titan, Saturn's largest moon, casts its shadow across the gas giant in a series of rare shadow transits. This unique ...

The final snap was of Saturn itself, even capturing where the spacecraft would ultimately plunge to its final destination. Explaining that impressive final photo, NASA said: "This monochrome view is ...

F rom the very beginning, JWST was shown to be a revolutionary instrument for the study of exoplanets, detecting intriguing ...