Look low on the southwestern horizon at sunset on Nov. 12 for a chance to see swift Mercury close to the red light of Mars in ...

Looking for a sky event this week? Check out our full Sky This Week column. November 11: Jupiter’s turn to stand still Io and ...

On November 12, Mars and Mercury will be visible close to each other in the southwestern sky at sunset, offering a rare celestial spectacle.

Mars is visible in the western sky after sunset in May. Mars appears as a reddish point of light. The Beehive Cluster (M44) is also visible in the evening sky. Telescopes reveal Mars' small size due ...

These noctilucent clouds, reflecting light from the sun after sunset, have been visible in Martian skies for the past four fall seasons. Credit: NASA / JPL-Caltech / MSSS A rover got a new view of ...