Stargazers who turn their eyes skyward — and use a little bit of imagination — will have a chance to spot a rare “smiley face” in space later this month.

In a star’s core, fusion takes terrific temperature and pressure that is provided by the crushing gravity of the star’s ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons as well. While some TNOs could be called dwarf planets because of their ...

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

The answer, you will not be surprised to learn, depends on the planet in question. The presence of a pole star in ... off that of the Sun, and similarly places the north celestial pole in Draco ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...