Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

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

A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

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

The planets in our solar system are currently showing a special constellation. We explain what can be seen in the night sky.

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

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

Astronomers have discovered more than 300 exoplanetary systems that have three or more known planets. Most of these planets are about the same size and spaced close together, earning them the moniker ...