ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

Known as Sgr A* – pronounced “Sagittarius A star” – the supermassive black hole is four million times the mass of the sun and is known to exhibit flares that can be observed in multiple wavelengths, ...

A team of scientists including the University of Toronto's Bart Ripperda and Braden Gail - assistant professor and graduate student, respectively, at ...

"Little red dot" galaxies discovered by the James Webb Space Telescope in the early cosmos appear to be ruled by supermassive ...

Scientists used changes in the supermassive black hole M87*'s accretion disk to infer its orientation, size and turbulence ...

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The image of M87*, the supermassive black hole at the center of massive elliptical galaxy M87, changed the world. It was the ...

Just east of Betelgeuse is the fine binocular cluster NGC 2244. But the much fainter Rosette Nebula that lies around the cluster shows up nicely in this fine photo of it by EAAA member James Schultz.

Scientists discover low-mass microquasars can accelerate cosmic rays, reshaping theories on high-energy particle origins.