Does space have a end?
No, they don’t believe there’s an end to space. However, we can only see a certain volume of all that’s out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists.
What’s the nearest galaxy to Earth?
Canis Major Dwarf Galaxy
How is a galaxy classified?
Galaxies are classified by shape. There are three general types: elliptical, spiral, and irregular. Our Milky Way Galaxy is a spiral galaxy. Some spiral galaxies are what we call “barred spirals” because the central bulge looks elongated – like a bar.
What are two types of star clusters?
The two basic categories of stellar clusters are open clusters, also known as galactic clusters, and globular clusters.
- Open or Galactic Clusters.
- Globular Clusters.
- Cluster Ages and Zero-Age Main Sequence.
What type of galaxy has no definite shape?
An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Irregular galaxies do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure.
What is the oldest type of galaxy?
GN-z11
What type of galaxy has the most dust?
Type c spiral galaxies
What is in the middle of a spiral galaxy?
Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. The disk of stars orbiting the bulge separates into arms that circle the galaxy.
Why is the Milky Way spiral shaped?
Astronomers believe that galaxies have spiral arms because galaxies rotate – or spin around a central axis – and because of something called “density waves.” A spiral galaxy’s rotation, or spin, bends the waves into spirals. Stars pass through the wave as they orbit the galaxy center.
What is the most common type of galaxy in the universe?
Elliptical Galaxies