Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars.

Measuring distances across the universe is much more challenging than measuring distances on Earth. Is a brighter star closer ...

More than 10 years after its 2013 release, After Earth (streaming on Peacock here) still rates as one of the most expensive ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Panorama of Nearest Galaxy Unveils Hundreds of Millions of Stars On a crisp, clear autumn night, you can see the most distant object visible to the naked eye — the stunning Andromeda Galaxy, our Milky ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

What is the parade of planets? How to see Venus, Mars, Jupiter, Saturn, Uranus and Neptune this January and what days and ...

Space exploration is no longer the domain of countries alone. It’s now rapidly becoming the domain of private interests.

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to line up in the sky from our perspective here on Earth," John Conafay, ...

A handful of planets in the solar system are expected to line up in the night sky for a few days in January 2025. Here's when ...

Educators from the Jefferson Elementary Center got a chance to learn how to use the Digital Star Lab workshop from the NASA ...

On the evening of February 28, stargazers will witness a rare celestial event: an alignment of seven planets visible ...