The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

The nebulosity of hydrogen gas is revealed with the use of a “Hydrogen-Alpha” filter in an astro image of the Cygnus ...

On Feb. 24, from west to east, you can see Mercury, Saturn, Neptune, Venus, Uranus, Jupiter and Mars, all spanning 117.5°, ...

Light pollution refers to the excessive, misdirected, or invasive use of artificial outdoor lighting. This phenomenon is most ...

Welcome to this month’s edition of “What’s up in the sky?” February has a nice lineup of planets and some eye-catching ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...

Scientists have used artificial intelligence (AI) to design never-before-seen nanomaterials with the strength of carbon steel and the lightness of styrofoam.

In February 1995, a small research organisation known as the SETI Institute launched what was then the most comprehensive ...

It's a regrettable reality that there is never time to cover all the interesting scientific stories each month. In the past, ...