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

Artist impression of the planetary system with four planets,around a small red star,called LHS1903. Caption: Astronomers have long thought solar systems follow a simple pattern similar to our own: ...

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

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

We know that our Solar System is not the blueprint for all planetary systems out there. There are gas giant planets orbiting closer to their stars than Mercury, and rocky worlds much larger than Earth ...

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

This is HOPS-315, a baby star where astronomers have observed evidence for the earliest stages of planet formation. The image was taken with the Atacama Large Millimeter/submillimeter Array (ALMA). In ...

The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.

Antarctica plays a crucial role in Earth's climate system by reflecting solar radiation back into space. The large white ice ...

For the first time in human history, we're watching a new solar system come to life. Not in theory, but in real, observable detail. NASA's James Webb Space Telescope (JWST) and its incredible ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...