As of today Mars will reverse its apparent west-to-east movement in the night sky and begin moving from east-to-west against the background stars. This is called “retrograde motion” and it ...

On Monday, Mars will look reddish and bright as the ... celestial object passes directly in front of another, hiding the background object from view," NASA says in a skywatching guide.

Is there really life on Mars? Was there once cellular material on the red planet? Scientists have been studying these questions for a long time, and now they have some new information that may ...

Four planets are visible in the night sky immediately after sunset, with Venus and Saturn in the southwest, Jupiter high in the southeast and Mars in the east. The best time to look is about 45 ...

"An occultation is when one celestial object passes directly in front of another, hiding the background object from view," NASA says in a skywatching guide. The timing of Mars' disappearing act ...