With their billions of stars, why don’t these giant structures light up the entirety of space?

With their billions of stars, why don’t these giant structures light up the entirety of space?
We define the meaning between these two descriptions of space
We take a look at the answer to this intriguing question
One supernova explosion is enough to pack a punch, but can two go off at the same time?
We find out if these beautiful structures are made by the titanic explosion of massive stars
We have the answer to this intriguing question
We’re able to detect them but is it possible to figure out the colours of the distant worlds we find?
Read on to find out how these beacons of electromagnetic radiation act like GPS satellites
A full on smashup or a near miss? We find out what happens to planets when their galaxies collide
We find out what that magic amount is to keep a star alive
Could black holes be a factory for unusual material at their hearts?
Could these worlds be the extreme cousins of gas giant Jupiter?
Often found around a star or black hole, we find out what an accretion disc is
Do things crash together or is it more serene?
Are these catastrophic explosions really as loud as they look?
What causes the vivid colours in deep space photography?
What happens when an unstoppable force meets another unstoppable force…
O, B, A, F and so on… What do they all mean?
“It’s not the kind of thing you’d want to spread on a slice of toast!”
The new study was conducted using NASA’s Chandra X-ray Observatory