Two days after its new phase, the moon will make a close pass to Jupiter in the evening sky while the summer constellations ...

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

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

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

There is something transformational about twilight. When the sun has just set in the west, the sky changes from the vibrant blue of afternoon to a more relaxed hue, as if it’s settling down for ...

The line-up of three evening planets in the southwest twilight sky, on Dec. 17, 2021, with Jupiter at top left, Venus at bottom right, and dimmer Saturn in the middle, all defining the line of the ...

NASA's Mars Exploration Rover Spirit captured this stunning view as the sun sank below the rim of Gusev crater on Mars.