Now, a new Nature study points to an answer by catching four planets at a stage most systems never show us: The awkward, ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

Astronomers are once again questioning whether our solar system is complete. Subtle gravitational effects suggest something large may be hiding far beyond the known planets. It hasn’t been directly ...

Since the very first episode of Pluribus, we’ve known the alien virus that hit planet Earth came from Kepler-22b, but Episode 8 gives us further insight into the hive mind’s source – and it has ...

Astronomers have found what appears to be one of the strangest known worlds in the universe. It orbits a type of rapidly spinning neutron star called a pulsar – this in itself is unusual, but it is ...

This artist’s concept shows what the ultra-hot super-Earth exoplanet TOI-561 b could look like based on observations from NASA’s James Webb Space Telescope and other observatories. Webb data suggests ...