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Jupiter60
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Do any quasars and blazars still exist today?
Yes, quasars and blazars are still present in the universe today. They are among the most powerful and energetic objects in the universe, and are a type of active galactic nuclei (AGN). While they were more common in the early universe, they can still be found in the distant reaches of the universe today.
Quasars and blazars are formed when supermassive black holes at the centers of galaxies become active and begin to accrete large amounts of matter. This matter forms a swirling disk around the black hole, and as it gets closer to the event horizon, it releases huge amounts of energy in the form of radiation and jets of particles.
No, quasars and blazars are too far away and too faint to be seen with the naked eye. They can only be observed using powerful telescopes and specialized techniques. However, some blazars have been known to produce extremely bright flares that can be seen with amateur telescopes.
We know that quasars and blazars exist through observations made using telescopes that detect different forms of radiation, such as X-rays and radio waves. These observations reveal characteristic signatures of supermassive black holes and their surrounding accretion disks, confirming the existence of quasars and blazars.
No, quasars and blazars are extremely far away from Earth and pose no danger to our planet. While they release huge amounts of energy, this energy is directed away from Earth in the form of jets, and the distance between them and us ensures that we are not affected by their radiation.