"Planetary alignment is an astronomical term used to describe the event when several planets gather closely on one side of the sun at the same time," according to the Star Walk website.

A planetary alignment is expected later in April. "Planetary alignment is an astronomical term used to describe the event when several planets gather closely on one side of the sun at the same time," ...

A triple conjunction, appearing to some as a smiley face, will be visible in the early morning sky on April 25 in Michigan.

He led the establishment of the Planetary Defense Coordination Office at NASA in January 2016 ... Related: Potentially dangerous asteroids (images) Space.com: How long have you been engaged ...

New findings change how Vesta is defined as not quite an asteroid or a planet. This research challenges previous notions ...

NASA said. Mercury will be close to the horizon and Neptune will be between the moon and Saturn, though the two planets may be difficult to see, explained EarthSky, an astronomy news website.