Venus, Jupiter and Mercury are forming a tight cluster low on the western horizon, though clouds and potential storms may ...

Mercury is due to join Venus and Jupiter in the night sky for an uncommon celestial event commonly known as a planet parade.

A mini planetary alignment takes place at dusk on June 17, and it's visible across Northern California.

This weekend, a rare six-planet "alignment" will be visible to stargazers — and Californians may have some of the best viewing conditions, with clear Central Valley skies making this one of the better ...