Are there other galaxies in the universe?
The universe contains somewhere in the ballpark of 100 billion and 200 billion galaxies. Out beyond our Milky Way, there are galaxies shaped like jellyfish, galaxies that consume other galaxies, and galaxies that seem to lack the dark matter that pervades the rest of the universe.
How many galaxies do we have in the universe?
All in all, Hubble reveals an estimated 100 billion galaxies in the universe or so, but this number is likely to increase to about 200 billion as telescope technology in space improves, Livio told Space.com.
Is our galaxy the only galaxy in the universe?
Our Milky Way galaxy is just one of billions of galaxies in the universe. Within it, there are at least 100 billion stars, and on average, each star has at least one planet orbiting it. This means there are potentially thousands of planetary systems like our solar system within the galaxy!
What is a dead galaxy?
The astronomers used one such “lens” to look at “dead” galaxies from when the universe was three billion years old. The “dead” moniker describes the fact that these galaxies no longer have the necessary cold hydrogen gas to make stars.
Can we travel to other galaxies?
The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.
How far in space have we gone?
The record for the farthest distance that humans have traveled goes to the all-American crew of famous Apollo 13 who were 400,171 kilometers (248,655 miles) away from Earth on April 14, 1970.
How do scientists see other galaxies?
The most distant galaxies are caught up in the expansion of the Universe, causing distant galaxies to redshift past the point where our optical and near-infrared telescopes (like Hubble) could detect them.
How do galaxies end?
Galaxies die when the stars that live in them stop forming. Scientists were able to glimpse a galaxy as it ejected almost half of the gas it uses to form stars. They captured this rare observation using the Atacama Large Millimeter/submillimeter Array of telescopes in Chile.
Are there living creatures like us in other galaxies?
With all the galaxies out there this is quite possible. There may be species out there who have to adapt to much harsher surroundings than the likes of us, this may mean that they inherit sizes much bigger than us through evolution in order to survive.
Are there galaxies we have not yet seen?
Yes, there are galaxies we haven’t seen. We don’t assume we have seen everything in the universe. The 2nd part of of your question is a paradox and nonsensical. Its mighty difficult to count galaxies (or prairie dogs or amoeba) if you cant see or observe them. And if you could see them, they wouldn’t count towards your question… O.o
Are there any stars outside of the known galaxies?
Yes stars can theoretically form outside galaxies but it is very rare due to the fact there is very little has in the intergalactic medium. Stara could form in dwarf galaxies that orbit the main galaxy or star clusters that orbit the galactic core where stars could technically form.
What galaxies are smaller and less common than other galaxies?
less than 100. elliptical galaxies. tend to be smaller than the other types of galaxies, are thought to be former starburst galaxies, have little in the way of dust and gas. (all of the above) All the stars we see at night with our unaided eyes are within. 10,000 light years, which is a small portion of our galaxy.