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 ...

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.

Collaboration has achieved the highest-resolution Earth-based observations to date, detecting light at 345 GHz from the ...