What's Today's Moon Phase? January 19, 2025 Crescent Explained

It's day one of the new lunar cycle, and over the next few days, a thin crescent will begin to appear as the Moon moves further along its orbit. It'll take a few days before it comes into view properly, but from tonight you should be able to see a sliver of Moon in the sky. What is today’s Moon phase? As of Monday, Jan. 19, the Moon phase is Waxing Crescent. According to NASA's Daily Moon Guide, 1% of the Moon will be lit up tonight. There's still too little Moon illuminated for us to spot anything, but it's only a few more days before the crescent will appear slightly bigger in the sky. When is the next Full Moon? The next Full Moon will be on Feb. 1. The last full moon was on Jan. 3. What are Moon phases? Moon phases make up the lunar cycle, which NASA says lasts about 29.5 days, the time it takes the Moon to complete one full orbit around Earth. As the Moon travels around our planet, it passes through eight distinct phases. While the same side of the Moon always faces Earth, the amount of sunlight illuminating it changes depending on its position in orbit. This is why the Moon can appear full, partially lit, or completely dark at different points in the cycle. The eight phases of the lunar cycle are: New Moon - The Moon is between Earth and the sun, so the side we see is dark (in other words, it's invisible to the eye). Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up! Waxing Crescent - A small sliver of light appears on the right side (Northern Hemisphere). First Quarter - Half of the Moon is lit on the right side. It looks like a half-Moon. Waxing Gibbous - More than half is lit up, but it’s not quite full yet. Full Moon - The whole face of the Moon is illuminated and fully visible. Waning Gibbous - The Moon starts losing light on the right side. (Northern Hemisphere) Third Quarter (or Last Quarter) - Another half-Moon, but now the left side is lit. Waning Crescent - A thin sliver of light remains on the left side before going dark again.