ohstarstuff: As if approaching in an intergalactic spaceship, I love the sense of grandeur captured in this zoomed-in view of NGC 5033. Lying some 40 million light-years away, it features an active and bright galactic nucleus that is thought to …
the-telescope-times: In Rotating Galaxies normal matter precisely determines acceleration A new radial acceleration relation found among spiral and irregular galaxies challenges current understanding – and possibly existence – of dark matter. In the late 1970s, astronomers Vera Rubin and Albert …