This is why projector lamps are measured in lumens, but the brightness coming off a projector screen is measured in nits — just like a TV, laptop, computer ... or maybe at night in our bedrooms ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A small space rock ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Blue Ghost ...

Find out what's up in your night sky during January 2025 and how to see it in this Space.com stargazing guide. Looking for a telescope for the next night sky event? We recommend the Celestron ...

It is 32% illuminated. Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes it is just a sliver of silvery light.

The first full moon of the year rises Monday night. It is known as the wolf moon, named for the howling wolves heard in winter. Here’s everything you need to know about the January full moon.

Mars disappeared behind the full Moon for a little more than an hour Monday night, an event visible across most of North America and parts of Africa. So I grabbed my camera, ran outside ...

Although the rising of the Wolf Moon will be best seen during dusk on Tuesday, Jan. 14, the previous night will see a near-full moon occult Mars. That will occur high in the sky and be visible ...

Those looking skyward Monday night will see a celestial treat with Mars nestled next to the first full moon of the season — the wolf moon — and a rare lunar occulation. Here is what you need ...

The next and first full moon of the year, also known as the Wolf Moon, will be in peak view on Monday. January's full moon will reach peak illumination at 5:27 p.m. ET on Monday, according to NASA.