An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

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

Venus and Saturn are due up for a visually striking event known as a planetary conjunction. Here's everything to know about ...

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

Like a double-stuffed Oreo of planetary proportions, the star LHS 1903 boasts two rocky exoplanets sandwiching two gaseous ones. From the star outward, the lineup — rocky-gaseous-gaseous-rocky — ...

A small, round piece of asteroid Ryugu (sample #91), called “S-lunar,” contains tiny particles (less than 1 mm) that will allow planetary scientists to study the magnetic signature of the early solar ...

The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...

Washington DC — New theoretical work shows that gas-giant planet formation can occur around binary stars in much the same way that it occurs around single stars like the Sun. The work is presented ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

Artist impression of the four classes of planetary system architecture. A new architecture framework allows researchers to study an entire planetary system at the systems level. If the small planets ...