How many galaxies are there like ours?
How many galaxies are there like ours?
Several thousand galaxies, each consisting of billions of stars, are in this small view. XDF (2012) view: Each light speck is a galaxy, some of which are as old as 13.2 billion years – the observable universe is estimated to contain 200 billion to two trillion galaxies.
What’s in the middle of a galaxy?
We live in the Milky Way Galaxy, which is a collection of stars, gas, dust, and a supermassive black hole at it’s very center. There is also a bulge in the middle that consists of mostly old stars. When you look at a spiral galaxy face-on, you can see beautiful spiral arms where stars are being born.
Why is a galaxy called an oasis?
Since most of the space between galaxies is thought to be empty, a galaxy is essentially an oasis in space. Our own solar system is located within a galaxy. Our Sun is only one of over 100 billion stars in a galaxy called the Milky Way. The Milky Way is a gigantic spiral disk with a bright, central bulge.
What planets are in the Andromeda Galaxy?
The Eight Planets
- Mercury.
- Venus.
- Earth.
- Mars.
- Jupiter.
- Saturn.
- Uranus.
- Neptune.
What is so special about the Andromeda Galaxy?
The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth. In approximately 4.5 billion years the Andromeda Galaxy and the Milky Way are expected to collide and the result will be a giant elliptical galaxy.
Will Andromeda and the Milky Way collide?
Across the universe, galaxies are colliding with each other. Thus the stars themselves typically don’t collide when galaxies merge. That said, the stars in both the Andromeda galaxy and our Milky Way will be affected by the merger. The Andromeda galaxy contains about a trillion stars.
What will happen when the Andromeda galaxy collides with the Milky Way galaxy?
What will happen when Andromeda and the Milky Way collide? The result of the collision between Andromeda and the Milky Way will be a new, larger galaxy, but rather than being a spiral like its forebears, this new system ends up as a giant elliptical.
What will it look like when Andromeda collides?
When Andromeda slams into the Milky Way, a trillion new stars will light up the night skies above Earth. The cosmic merger, according to NASA, will result in a head-on collision on an unimaginable scale. Andromeda will warp the shape of the Milky Way and our Sun is likely to be punted to a different part of the galaxy.
Can you see a galaxy with your eyes?
Answer: Yes, you can see a few other galaxies without using a telescope! The nearby Andromeda Galaxy, also called M31, is bright enough to be seen by the naked eye on dark, moonless nights. The Andromeda Galaxy is the only other (besides the Milky Way) spiral galaxy we can see with the naked eye.
Can stars exist outside a galaxy?
Yes, there are stars between galaxies. When there are collisions or interactions between galaxies, stars can be ripped out of the galaxies. These stars will then wander into space between galaxies.