Venus, Jupiter, Mars, Mercury, and Saturn will align in February Mercury and Saturn will appear closest on4 Best viewing is ...

The moon will be only 61% illuminated and not quite so dazzling, making this upcoming occultation easy to see and enjoy.

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Mercury takes only 88 Earth days to orbit the sun.

You might want to keep your eyes on the skies through next month: Six planets will align in January and February.

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...