A red supergiant star appears to have changed in just a few years – an astronomical blink of an eye – which suggests it may ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

Portugal’s unsung region of Alentejo is perfect for soft adventures. From horse-riding and beekeeping to kayaking under a ...

When observing the night sky, it's easy to forget that every point of twinkling light is a star at some point in its life ...

The red star is nearing the end of its life and could go nova at any moment in the next 200 years. The supergiant star has a diameter that is 700 times larger than the sun, and 100,000 times brighter.

His left shoulder is marked by the red supergiant star Betelgeuse, while the lower right of his tunic by the blue supergiant Rigel. Orion’s sword extends down from his belt, signified by a faint ...

Because Antares is a red supergiant star, it takes more than the blink of an eye to disappear and reappear. I often refer to the constellation Octans the Octant during my planetarium presentations.

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

Binoculars will help the view. Feb. 21: The waning crescent moon will be very close to the red supergiant star, Antares, in the hours before dawn in the southeast. Feb. 24-25: Mercury pairs up ...