When they look at sky brightness—what they call the sky background—they use a unit of brightness per area of the sky: how much light is spread out over a given parcel of celestial real estate.

When you look up at the night sky, can you see the stars? If you live in a large city or near one, the answer is probably no. The culprit is not just clouds and weather — it's light pollution.

This month will usher in two separate conjunctions — one between the moon and a rarely-visible Mercury, and another between the moon and Mars.

After putting on a great show in our evening sky since the fall of 2024, dazzling Venus puts on a spectacular showing for early morning risers for the balance of 2025.

Indie game developer and publisher thatgamecompany will be doing something new with Sky: Children of the Light, as they will be showing an in-game animated feature. The team has created a two-part ...

EL PASO, Texas (KVIA) -- El Pasoans report seeing a bright light in the sky, with some saying it's a meteor. Daniel Paulus, is one of the many El Pasoans that experienced this rare sighting and ...

Social media users across the Southwest, including in Arizona, shared photos of a mysterious beam of light in the sky on the night of May 16.

Sky: Children of the Light is one of the few MMOs that offer a peaceful and relaxing experience, as players explore a beautiful kingdom across seven realms.

Light pollution is visible in several directions. Under these skies, the sky background begins to appear gray instead of black. Level three classifies rural skies where you can see the dusty Milky ...

That is set to happen early Friday morning in the night sky as the moon, Venus and Saturn will line up to create what will look like a smiley face. A Smile in the Sky is expected on April 25.

This giant, next-generation satellite is now one of the brightest objects in the night sky The BlueWalker 3 satellite can basically turn a mobile phone into a satellite phone. Light pollution is a ...