A comet tearing through the inner solar system at roughly 58 kilometers per second formed between 10 and 12 billion years ago ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

New work from Carnegie’s Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is ...

Long before 3I/ATLAS slipped through the inner solar system, its water had already recorded the kind of place it came from.

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 from MIT and their colleagues have estimated the lifetime of the solar nebula — a key stage during which much of the solar system evolution took shape. This new estimate suggests that the ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...