A black moon also refers to the new moon phase itself when the moon is positioned between Earth and the sun, making it nearly invisible from our view. The black moon is a new moon in Capricorn, an Earth sign associated with ambition, professional goals, societal structures and authority, according to Thomas.

The black moon will give skygazers an opportunity to say goodbye to 2024 by witnessing this rare astronomical phenomenon.

Something rare is happening in the skies in the next few days — a black moon. This rare celestial event is due to an unusual calendar alignment: two new moons in one month. The first occurred on Dec. 1, and now, the second — the black moon — will arrive on Monday, Dec. 30.

The Chinese Lunar New Year, starting Jan. 29, 2025, marks the Year of the Wood Snake. It’s celebrated for 15 days, ending on Feb. 12, or Lantern Festival.

Every few years, two new moons occur in the same month - and that is what's known as a black moon. However, as with all new moons, it won't be visible from Earth. Find out more here.

Here are the best lunar events to see in 2025, including the Major Lunar Standstill, eclipses, occultations and conjunctions involving the moon.

Like all new moons, black moons are invisible to the human eye

As 2024 concludes, the night sky presents a remarkable celestial event: the black moon. This phenomenon, defined as the second new moon in a single calendar month, occurs infrequently and offers a unique opportunity for skywatchers to witness the heavens under ideal stargazing conditions.

December 2024 will see a rare "black moon," a term for the second new moon in a calendar month. The second new moon of December will occur at 5:27 p.m. ET (2227 GMT) on Dec. 30, according to the U.S.