Meet Ophiuchus, the so-called 13th constellation in the Zodiac.

Urban legends abound on the subject of things—and people— going haywire around the time of the full Moon. But is there any truth to it? Depends on who you ask.

The Paschal Full Moon is the first full Moon after the spring equinox. The Paschal Full Moon is significant because it determines which date Easter falls on each year. For this reason, Easter is a movable holiday, occurring anywhere from late March to late April. When Is The Next Paschal Full Moon? In 2025, the

Centaurus is an ancient constellation and one of the largest and brightest constellations in the sky. Learn more about this half-man/half-horse.

Long before Pluto, another spherical chunk of rock and ice in our Solar System was given, and subsequently stripped of, planetary status. Learn about Ceres.

There's a lot of talk of "Supermoons" these days. But what are they, and how are they different from a regular full Moon? We explain.

Did you know that many of the familiar star formations you know and love aren't actually constellations? Learn more!

It may have had an identity crisis for a while, but Pluto is a planet again, and it's pretty interesting. Learn more!

Our former "ninth planet," Pluto, is actually a dwarf planet. Learn more!

Sure, everyone knows what a Full Moon is, but do you know what a Waxing Gibbous or a Waning Crescent are? Find out!