There at least 60 billion spiral galaxies in the universe because the spiral galaxies comprise of about 60 percent of all galaxies which are about 100 billion.
No, because it will be impossible for Hubble make a 3D map of at least 100 billion galaxies (i.e. 60 billion spiral and barred spiral galaxies, 20 billion lenticular galaxies, 15 billion elliptical galaxies, and 5 billion irregular/peculiar galaxies) in the observable universe, at distances up to 13 billion light-years; since the observable universe is 13.7 billion light-years in diameter.
There are at least 20 billion lenticular galaxies in the universe.
There are at least 15 billion elliptical galaxies in the universe.
There are at least 5 billion irregular galaxies in the universe.
If you counted 1 galaxy per second, it would take ~3200 years to count all 100 billion galaxies in the universe.
There are at least 20 billion lenticular galaxies in the observable universe, at distances up to 13 billion light years.
There are at least 15 billion elliptical galaxies in the observable universe, at distances up to 13 billion light years.
There are at least 5 billion irregular galaxies in the observable universe, at distances up to 13 billion light years.
No. Because it will be impossible for astronomers to make an atlas of at least 100 billion galaxies in the observable universe.
No, because it will be impossible for the PGC catalog to have at least all 100 billion galaxies in the observable universe.
Yes, because scientists have found hundreds and hundreds of galaxies already and scientists say that there are more galaxies out there that they haven't found!
at least 100 billion or more.