Quasars
The cosmic entities that fuel quasars.
What are supermassive black holes?
The size of a black hole.
What is infinitely small?
What is 8 [minutes]?
The property that causes black holes to suck in matter (and light).
What is gravity?
This famous astronomer, who proved that the universe was expanding, had a telescope named after him.
Who was Edwin Hubble?
The color that is more common for quasars than red.
What is blue?
The reason quasars aren't sucked into the black hole powering them immediately.
What is the rapid momentum?
First discovered in 1967, this object is a neutron star that spins so fast it was once mistaken for an alien signal.
What are pulsars?
The two types of quasars where there are, or appear to be, multiple.
What are lensed multiples and physical multiples?
The spelling of Sabrina's middle name.
What is X-U?