A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.
Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be possible. Around the small star LHS 1903, a dense rocky world orbits on ...
Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.
Little pieces of the 4.5 billion-year-old Asteroid Bennu are saying a whole lot about the history of the solar system. As the first asteroid samples to return to the U.S. for research, particles from ...
A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.