Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

What is the difference between a moon and a planet? Trick question! According to scientific definitions, there often isn’t much of a difference at all. That might seem counterintuitive, but it’s true.

If you do check out Jupiter with a small telescope on Sunday night, you'll see all four Galilean moons, with Ganymede and Io on one side of Jupiter and Europa and Callisto on the other. The ...

A conjunction is an astronomical event in which at least two planets – or, in this case, other celestial bodies – appear to our vantage from Earth to be close together in the sky. The trio of ...

The moon's oddly skewed dust cloud may be caused by an extreme day-night temperature difference, a new study suggests.

Is the moon a star or a planet? The correct answer is "neither," but that's not the consensus reached when the argument comes up in this funny TV clip. During a recent show for the QVC shopping ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called "red giant" phase are even more destructive to their orbiting planets than ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This ...

Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 ...