black holes

Category archives for black holes

“I think there are a number of experiments that are thinking about how you could look in different frequency bands, and get a glimpse of the primordial gravitational wave background. I think that would be really revolutionary, because that would be your first glimpse at the very first instant of our Universe.” -Dave Reitze, LIGO’s…

“All enterprises that are entered into with indiscreet zeal may be pursued with great vigor at first, but are sure to collapse in the end.” -Tacitus Dark matter makes up the overwhelming majority of mass in the Universe. With five times as much of it as there is normal matter, and the fact that it…

“Man is something that shall be overcome. Man is a rope,tied between beast and overman – a rope over an abyss.What is great in man is that he is a bridge and not an end.” -Friedrich Nietzsche There are only two types of singularities that General Relativity predicts the existence of in our Universe: one…

“Never look down to test the ground before taking your next step; only he who keeps his eye fixed on the far horizon will find the right road.” -Dag Hammarskjold A black hole is a region of space that’s got so much mass in such a small volume that the escape velocity within a specific…

“For something to collapse, not all systems have to shut down. In most cases, just one system is enough.” -Robert Kiyosaki Do supermassive black holes form from the merger and growth of many smaller black holes, falling towards a cluster/galactic center where they find one another and grow into a behemoth? Or is there a…

“Find a place inside where there’s joy, and the joy will burn out the pain.” -Joseph Campbell One of the cardinal rules of a black hole is that anything that falls inside the event horizon — that crosses that invisible boundary — can never escape. That’s because the escape velocity from inside the event horizon…

“Black holes can bang against space-time as mallets on a drum and have a very characteristic song.” -Janna Levin If you had told an astrophysicist five years ago that binary black holes were common, that would’ve been news, but not surprising. If you had told them that ~30 solar masses was a good estimate for…

“We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.” -T.S. Eliot Now that not just one but two gravitational wave events have been directly detected, we’re officially in the era of true gravitational wave astronomy. LIGO…

“Mozart’s music is like an X-ray of your soul – it shows what is there, and what isn’t.” -Isaac Stern When supermassive black holes have a large amount of matter fall onto them, they accelerate a large amount of the ionized material — particularly electrons — into high-velocity, bi-directional jets. In many cases, those jets…

“If you’ve seen one gamma-ray burst, you’ve seen one gamma-ray burst!” -Common quote among gamma-ray burst astronomers, emphasizing how little we know about them. When the first gravitational wave signal ever, GW150914, was directly detected, NASA’s Fermi GBM team shocked the world by announcing the detection of a high-energy burst of electromagnetic radiation. This was…