Question

A friend of yours who has watched many Star Trek episodes and movies says, "I thought that black holes pulled everything into them. Why then do astronomers think that black holes can explain the great outpouring of energy from quasars?" How would you respond?

Answer 1

Star Trek was a US-based media series based on Gene Roddenberry's science-fiction TV series.

Explanation:

Actually, black holes draw matter to them, and it's no longer detectable when it passes inside the event horizon.   And, when events are near but still outside the event horizon, incredible things happen.  

As a matter of flaws into the black hole on an iron core, the gravitational power of the black hole is accelerated at ever-higher speeds, with gas colliding rising rates, and gas becoming warm.  

Hot gas is the heat emission and is the hot gas emission that we consider as a huge energy production. But all the gas still resides outside the black hole gravitational field.