radio-astronomy

A low-mass black hole in a spiral galaxy 1.8 billion light-years away has stayed radio-bright for at least eight years, a transition astronomers say has never been observed before.

PSR J1810-0623 spins 220 times a second and circles a white dwarf every 15.4 days on an orbit with an eccentricity of just 0.000015, one of the roundest pulsar binaries known.

ALMA observations reveal a cone-shaped cavity carved into cold gas around Sagittarius A*, the first clear evidence of a wind blowing from the galaxy's central black hole.

The ACES survey stitched together ALMA's biggest mosaic to date, revealing dozens of molecules and intricate gas filaments across the galaxy's Central Molecular Zone.

South Africa's MeerKAT radio telescope has discovered a record-breaking hydroxyl gigamaser in a merging galaxy system, shattering the previous distance record by a factor of two.