The Gaia spacecraft view of the whole sky: it’s measured the motion of two billion stars (ESA/Gaia/DPAC, CC BY-SA 3.0 IGO) We all know Edmond Halley because he’s immortalised by the comet that bears ...
Barnard's Star exhibits the highest known proper motion (1° per 351 years), a phenomenon attributed to its close proximity (less than 6 light-years) and a substantial radial velocity of 110 km/s ...
Home > Extreme Astronomers Successfully Measure the Motion of 66 Nearby Galaxies A team of astronomers has used the ESA's Gaia spacecraft to get insight into our celestial neighbors, determining the ...