Grab your telescope and join us on a sightseeing tour, before the moon returns to spoil the fun!

The planets around a nearby star seem to be in the wrong order, hinting that they formed through a different mechanism than ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

A parade of six planets will be visible in Michigan night skies. What to know about the alignment.

Six planets—including Venus, Jupiter, and Mercury—will line up in the sky. Here’s the best time to watch and where to find ...

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

A global team of astronomers, led by the University of Warwick, have used a European Space Agency (ESA) telescope to discover ...

The best “planet parade” of the year puts Venus, Jupiter, and more on display right after sunset—and you can see most of them ...

Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific expectations -- and suggests these faraway worlds formed in a manner never seen ...