One other thing the Gaia data has been clarifying is that the Milky Way's disk is not serene and flat, but warped and ...

Supernova remnants, stellar nurseries and more populate the new edge-on view of the Milky Way as seen from Earth’s southern hemisphere.

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...