Venus continues to be the brilliant “Morning Star” in the East before dawn, albeit dimming just a bit as it moves away from ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

The first evening of June finds Mars in the company of a lovely crescent Moon. The Red Planet reached opposition back in ...

Jupiter teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

But the gloaming doesn’t come all at once; instead twilight slides over the sky in eliding stages. The first that occurs after sunset is called civil twilight, so named because it’s when the ...

A telescope under a twilight sky ready for stargazing. Venus will shine as one of the brightest objects in the sky, second only to the moon, shortly after sunset this weekend. A telescope under a ...

This effect is more common at sunset because the sun’s light creates haze particles suspended in the air that accumulate during the day. Also, as twilight begins and the sky darkens, the ...