NASA Post

1.
(Visible) M33 is a nearby galaxy that can be seen with a naked eye... Th crab nebula is a gaseous leftover supernova.
(XRay) Cygnus A is a blackholed centered galaxy
(Radio) Moon... Nearest planetary body to the Earth. Bright when seen in XRAY. Betelegeues Is a bright Red giant that you can observe with radio waves to determine its heat.
2.
 Voyage to Andromeda and Cygnus X-1
Cygnus X-1 Its a black hole with a star orbiting it. You have to pass many planets and nebulas to get there.

Andromeda is our nearest galaxy and you have to pass a supernova to get there.

3 Upclose and personal
How many blackholes are there? Too many to count.

Does a blackhole defy gravity? No it abides by the laws of gravit.

Does a blackhole die? Yes it slowly evaporates.