Surprised astronomers just discovered a world that blurs the line between planet and stellar remnant, hiding in a system ...

James Webb observations detect warm carbon monoxide gas in the inner disk of HD 131488, revealing non-equilibrium conditions and evidence of exocomet-driven gas replenishment near the star.

Three merging galaxies host three active black holes, offering rare insight into galaxy and black hole growth.

Astronomers have traced the origin of a colossal white dwarf to a catastrophic crash between two dead stars, turning a quiet ...