Scientists have seemingly settled long-standing arguments about whether the components of Earth originated from the inner or ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

New observations of interstellar comet 3I/ATLAS show high levels of deuterated water, suggesting it formed in a colder star ...

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Comets are loose collections of ice, dust and frozen gases left over from the solar system's formation 4.6 billion years ago.

New research confirms Earth formed almost entirely from material in the inner Solar System, with Jupiter acting as a barrier to outer Solar System debris. Isotopic analysis of meteorites shows a close ...

Scientists have long suspected this was a relatively peaceful process, with showers of primordial solids slowly raining out ...

The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary systems on its head. Scientists have discovered an alien solar system ...

Interstellar comet 3I/ATLAS showed changes in its gas composition after passing close to the sun, offering data on its ...

Meteorite isotope research shows Earth's composition aligns almost entirely with inner solar system materials, with Jupiter's gravity likely blocking outer solar system debris. Published in Nature ...