Ancient stars located surprisingly near to our sun formed less than a billion years after the Big Bang — suggesting part of the Milky Way is much older than previously thought, a study has found.

with stars and gas hurtling around the Milky Way’s supermassive black hole, Sagittarius A*. It has a mass more than 4 million times the mass of the sun crammed into a diameter just about 30 ...

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

They also calculated the beam width (about 3.4 degrees) and used the sun for other calibration steps. The paper notes that some designs use the ubiquitous RTL-SDR, but this limits the bandwidth to ...