The universe is expanding. And we know that because when astronomers look out at the galaxies around us, they see every galaxy moving away from us at a speed that increases in proportion to the distance. It doesn't mean that there's anything wrong about us, that everybody's moving away from us or that we're at the center of the universe.any other hypothetical observer in any other galaxy would observe exactly the same phenomenon. It's a remarkable fact of our universe. It is expanding.Now that um amazing ph ...

RT Mario Nawfal (@MarioNawfal)ELON: YOUR ATOMS HAVE BEEN INSIDE STARSElon paused for a moment, thinking out loud about where everything began.He traced the story of existence from a cloud of hydrogen to the birth and death of stars, all leading, somehow, to us.His thought drifted from physics into philosophy:“I’ve thought about how we got here if we just started as a hydrogen gas cloud that condensed and formed stars, and then these stars exploded and then re condensed and formed stars again, and then explo ...