black holes and dark matter
daily double, how many lives have black holes taken
0
the largest galaxies contain up to one hundred __________ stars
trillion
what are galaxies
galaxies are groups of stars planets gas and dust
what are quasars
quasars are celestial objects in the middle of galaxies emitting TONS of energy and light
how is a black hole formed
by the death of a massive star
there are three general types of galaxies: elliptical spiral and ____________
there are three general types of galaxies: elliptical spiral and IRREGULAR
what holds galaxies together
gravity
quasars usually live up to _____________________
quasars usually live up to 100-1000 MILLION YEARS
when was the first black hole spotted
1971
the milky way is which type of galaxy
spiral
what are the two types of black holes
stellar black holes and supermassive black holes
Quasars are actually _________________ degrees Celsius
Quasars are actually 350 MILLION degrees Celsius
when was dark matter discovered
1933
what does an irregular galaxy look like
it has no regular shape
how wide is the milky way
100,000 light years
The oldest quesar is ________________
The oldest quasar is 13 BILLION YEARS OLD