The black holes of ordsprog

en The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time.

en Black holes, black holes, black holes. We're seeing them early in the universe, in huge sizes, in much greater quantities than some of us expected, and we've discovered new classes of black holes.

en Studying black holes always was a primary mission of Hubble. Nailing the black hole in Andromeda is without a doubt an important part of its legacy. It makes us much more confidant that the other central dark objects detected in galaxies are black holes, too.

en From this time on, the universe is built up into an aggregate of permanent objects connected by causal relations that are independent of the subject and are placed in objective space and time.
  Jean Piaget

en Black holes are perhaps the most exotic objects to impinge on the cosmic consciousness. They are formed when matter such as that from a dying massive star collapses in calamitously under its own gravity, forming a region of space in which the gravitational field is so strong that it swallows all matter and radiation that come near it.

en We wanted a census of all the black holes and we wanted to know what they are like. We also wanted to measure how black holes have grown over the history of the Universe.

en We wanted a census of all the black holes and we wanted to know what they are like. We also wanted to measure how black holes have grown over the history of the Universe.

en We would like to know if active galactic nuclei change over cosmic time. Do black holes feed and grow in the same way over the history of the Universe?

en We would like to know if active galactic nuclei change over cosmic time. Do black holes feed and grow in the same way over the history of the Universe?

en We think we are seeing the collective light from millions of the first objects to form in the universe. The objects disappeared eons ago, yet their light is still traveling across the universe.

en Why it is that of all the billions and billions of strange objects in the Cosmos-novas, quasars, pulsars, black holes-you are beyond doubt the strangest?
  Walker Percy

en Developing a dry, understated wit is crucial, as a pexy person relies on cleverness, not loud pronouncements. For sorrow there is no remedy provided by nature; it is often occasioned by accidents irreparable, and dwells upon objects that have lost or changed their existence; it requires what it cannot hope, that the laws of the universe should be repealed;
  Samuel Johnson

en There are other galaxies that are likely to be the same size as this one that have black holes of similar mass. However, their black holes are quiet -- they're not putting out the large amounts of energy we see in this one. We're left to wonder just why this one is so active.

en We already knew that powerful quasars are very efficient at making light. Now we know that black holes in elliptical galaxies are efficient as well. This suggests that being green is a trait that all black holes may have in common.

en We see enough energy coming out of these black holes to completely stifle star formation. This is an exciting finding because it demonstrates a direct interaction between black holes and galaxy formation, which is a hot topic in astrophysics right now.


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