26K views · 437 reactions | Galaxies sometimes fling stars into intergalactic space at speeds beyond imagination. These stars, known as hypervelocity stars, move faster than the force needed to escape a galaxy's gravity and are pushed out by phenomena like the supermassive black hole at a galaxy's center. #space #galaxy | Future Worlds | Facebook

Simulation of Intergalactic Medium Coalescing and Formation of Proto-cluster. • The IllustrisTNG Project 18.5.2019 VIDEO: (Best Viewed on Large Screen) The motion of cosmic gas in a small region of TNG50, color encoding velocity from at rest (black) to 1000 km/s (bright red and white). At early times, accretion and infall from the intergalactic medium coallesces in the centers of many small halos. Stellar feedback produces slow galactic winds which gradually push mass outwards, until several cen