Why do all quasars have high redshifts?
The high redshift implies they are moving away rapidly, and therefore are very distant. Since we see back in time as we look out in space (we see the light as it was when the quasar emitted it), this tells us that quasars were more common long ago, and are not common now. Why the early universe had quasars, and why they are not around today, is a mystery which may be answered as we learn more about how the first galaxies formed after the big bang. +++++++++++++++++ Q: You mentioned a new kind of black hole in a news bulletin you sent out this month. Where did it fit in? A: Astronomers believe they’ve discovered black holes intermediate in mass between stellar black holes (up to about 50 solar masses) and supermassive black holes (millions to billions of solar masses, like those found in the cores of galaxies). The intermediate mass black holes have masses of thousands to hundreds of thousands of solar masses. +++++++++++++++++ Q: Can the jets from galaxies interact with intergalactic m
