Read this excerpt from A Black Hole Is NOT a Hole. Which statement best describes the connection made in
the excerpt?
Reber mapped these signals from the sky and shared
his findings. Astronomers followed up with new
investigations and soon began reporting more signals.
Over time, with better radio telescopes, they found that
some radio sources appeared as paired patches, one on
either side of a tiny dot. They called these sources "radio
galaxies." They also discovered other, more starlike
sources-intense dots of radio energy without patches.
How strange. What could these quasars (short for
"quasi-stellar radio sources") be? Were they related to
the radio galaxies?
O The excerpt makes a connection between Reber's
discoveries and the discovery of radio galaxies by
later astronomers.
O The excerpt makes a connection between the
discovery of radio galaxies and the discovery of black
holes.
O The excerpt makes a connection between the
invention of radio telescopes and the discovery of
black holes.
O The excerpt makes a connection between the
discovery radio galaxies and the discovery of
quasars.