The innermost planets straddle nighttime, with Mercury in the evening and the greatest western elongation of Venus in the ...

Red supergiant Antares, having just passed opposition on May 30, begins June low in the southeast at dusk. The morning ...

The King of the Planets teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on ...

This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions. Here’s when you ...

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

This twilight or the second sunset if you will is when the center of the sun is between six and 12 degrees below the horizon. According to Time and Date, the stars are filling up the sky more ...

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 ...

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 ...

This twilight or the second sunset if you will is when the center of the sun is between six and 12 degrees below the horizon. According to Time and Date, the stars are filling up the sky more ...