The James Webb Space Telescope (JWST) has discovered several galaxies that resemble the Milky Way: 

• Sparker: A galaxy located in the constellation Volens that’s 9 billion light years away from Earth. It’s surrounded by about two dozen globular clusters. 

• ceers-2112: A spiral galaxy that appears to have had a bar of stars and gas cutting across its center when the universe was only two billion years old. 
• JWST-ER1: A massive and compact quiescent galaxy. 

The JWST has also led scientists to discover that disk-shaped galaxies, similar to the Milky Way, were more prevalent in the early universe than previously thought.

The JWST has also discovered other galaxies, including: 

• JADES-GS+53.15508-27.80178: A quiescent galaxy with a relatively low mass and a high redshift 
• JWST-ER1: A massive and compact quiescent galaxy 
• Maisie’s galaxy: One of the four earliest galaxies ever seen by humans 
• JADES-GS-z13-0: A galaxy with a redshift of 13.2, meaning it looks as it did just 320 million years after the Big Bang 
• A thread-like arrangement of 10 galaxies: A 3 million light-year-long structure anchored by a luminous quasar 

The JWST has also discovered other objects, including: 

• K2-18 b An exoplanet 8.6 times the size of Earth with the presence of methane and carbon dioxide in its atmosphere 
• 717 ancient galaxies Galaxies that spanned thousands of light-years and were between 370 million and 650 million years old

Other galaxies that are similar to the Milky Way include: 

• Andromeda Galaxy: The closest spiral galaxy to the Milky Way, and the only other spiral galaxy that can be seen with the naked eye. It’s also the largest galaxy in the Local Group, which includes the Milky Way, the Triangulum Galaxy, and about 30 other smaller galaxies. 

• Southern Pinwheel Galaxy: Also known as Messier 83, this galaxy has many features in common with the Milky Way, including spiral arms, a central bar, and spurs and minor arms. 
• LEDA 2046648: A distant spiral galaxy that resembles the Milky Way. 
• Spiral Galaxy NGC 3949: A galaxy that’s similar to the Milky Way. 

Other galaxies that are close to the Milky Way include: 

• Triangulum Galaxy: Also known as M33, it’s approximately 2.731 million light-years away from the Milky Way. 
• Dwarf galaxies: Astronomers have found several dwarf galaxies orbiting the Milky Way.

Yes, there are more galaxies than just the Milky Way: 

• Observable universe One 2016 study estimated that the observable universe contains two trillion galaxies. Other estimates say that there are between 100 and 200 billion galaxies in the observable universe. 
• Milky Way The Milky Way is one of the biggest galaxies in the observable universe. It contains a supermassive black hole at its core, surrounded by a central bulge of old, yellow stars. Beyond that, young blue stars spiral out from the center, filled in with dark lanes of dust. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. 
• Milky Way-like galaxies Astronomers have found more galaxies that are similar to the Milky Way. These galaxies could be the kind where life can develop.

The Milky Way is almost as old as the universe itself. It’s estimated to be about 13.61 billion years old. The oldest galaxy we know of is about 13.81 billion years old, which is within 300 million years of the big bang.

Most normal galaxies are probably about the same age as the Milky Way, formed at the same time. Galaxies began forming around 200 million to 300 million years after the Big Bang, over the billions of years and not synchronously. The formation is still an ongoing process. 

The newest galaxy we know of formed only about 500 million years ago

The youngest known galaxy is 1 Zwicky 18, which is estimated to be 500 million years old. The youngest and most distant galaxy observed by scientists is GN-z11, which is 32 billion light-years away. 

Astronomers can measure the average age of stars in a galaxy using spectroscopy, which splits the light from a galaxy into many different colors. Young galaxies have a large fraction of recently formed hot blue stars, whereas old galaxies mostly contain colder red stars formed shortly after the Big Bang. 

Spiral galaxies are typically young galaxies because they have gas and dust that are used to make new stars, which glow very brightly. Irregular galaxies are like teenage galaxies, with ages that are older than spirals, but younger than ellipticals. They are often formed by two regular galaxies that collide.

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