Is Andromeda bigger than the Milky Way
In terms of physical extent, the Andromeda Galaxy's disk diameter is well-measured, and spans 220,000 light-years across. For comparison, the diameter of the Milky Way's disk has long been thought to be only about half that: around 100,000 light-years.
Can you see galaxies from Earth
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.
Is the Earth in the Milky Way
Our solar system—which includes the sun, Earth, and seven other planets—is part of this galaxy, called … you guessed it … the Milky Way. The Milky Way contains hundreds of billions of stars like our sun. (And like our sun, most of these stars have at least one planet orbiting them.)
How many stars are there in the Milky Way
Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!
What is the smallest galaxy
Segue 2 Dwarf Galaxy
Segue 2
| Segue 2 Dwarf Galaxy | |
|---|---|
| Observation data (J2000 epoch) | |
| Apparent size (V) | 6.8 +0.4 −0.4′ |
| Other designations | |
| Segue 2, PGC 4713565 |
Will the Milky Way hit Andromeda
Our Milky Way is on a collision course with another spiral galaxy called Andromeda. Today Andromeda is visible as a speck of light in the night sky, but about 5 billion years from now, it will be tangled up with us.
Why can’t we visit other galaxies
Intergalactic travel is the hypothetical crewed or uncrewed travel between galaxies. Due to the enormous distances between the Milky Way and even its closest neighbors—tens of thousands to millions of light-years—any such venture would be far more technologically and financially demanding than even interstellar travel.
Can we see Milky Way with naked eyes
From Earth, it can be seen as a hazy form of stars in the night sky that the naked eye can barely notice. You can see the Milky Way all year, no matter where you are in the world. It's visible as long as the sky is clear and there's minimal light pollution.
What is a galaxy kids
A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle.
Do we live in a galaxy
We live in one of the arms of a large spiral galaxy called the Milky Way.
How old is our galaxy
13.61 billion yearsMilky Way / Age
What is the biggest star
UY Scuti
The biggest star in the universe (that we know of), UY Scuti is a variable hypergiant with a radius around 1,700 times larger than the radius of the sun. To put that in perspective, the volume of almost 5 billion suns could fit inside a sphere the size of UY Scuti.
How old is the oldest galaxy
13.4-13.5 billion years ago
In their study, Naidu and his colleagues determined that GLASS-z13 is from 13.4-13.5 billion years ago.
How far is 1 galaxy
Distance Information
The closest known galaxy to us is the Canis Major Dwarf Galaxy, at 236,000,000,000,000,000 km (25,000 light years) from the Sun. The Sagittarius Dwarf Elliptical Galaxy is the next closest , at 662,000,000,000,000,000 km (70,000 light years) from the Sun.
What will Andromeda look like in 3 billion years
Now the Andromeda galaxy can be seen with the naked eye, like a tiny dot in the sky. But in three billion years it will be so clearly visible to the naked eye that it will even be possible to see individual spiral arms in it.
Who will win Andromeda or Milky Way
Taking also into account the Sun's motion, Andromeda's tangential or sideways velocity with respect to the Milky Way was found to be much smaller than the speed of approach (consistent with zero given the uncertainty) and therefore it will eventually merge with the Milky Way in around 5 billion years.
Can humans leave the Milky Way
So, to leave our Galaxy, we would have to travel about 500 light-years vertically, or about 25,000 light-years away from the galactic centre. We'd need to go much further to escape the 'halo' of diffuse gas, old stars and globular clusters that surrounds the Milky Way's stellar disk.
Have we left the Milky Way galaxy
Until it collides with something or disintegrates. And if the spacecraft survives long enough 500 million years from now it will complete a full orbit through the milky.
Why can’t we see our galaxy
Low Surface Brightness:
In addition to being a spiral barred galaxy, the Milky Way is what is known as a Low Surface Brightness (LSB) galaxy – a classification that refers to galaxies where their surface brightness is, when viewed from Earth, at least one magnitude lower than the ambient night sky.
Does our Milky Way have a black hole
Stellar-mass black holes are found throughout our Milky Way galaxy and have masses less than about 100 times that of our Sun. They comprise one of the possible endpoints of the lives of high-mass stars. Stars are fueled by the nuclear fusion of hydrogen, which forms helium and other elements deep in their interiors.
What is the oldest galaxy
JADES-GS-z13-0
Up until the discovery of JADES-GS-z13-0 in 2022 by the James Webb Space Telescope, GN-z11 was the oldest and most distant known galaxy yet identified in the observable universe, having a spectroscopic redshift of z = 10.957, which corresponds to a proper distance of approximately 32 billion light-years (9.8 billion …
Who is the youngest galaxy
NASA's Hubble Space Telescope snapped a view of what may be the youngest galaxy ever seen. This "late bloomer" may not have begun active star formation until about 13 billion years after the Big Bang. Called I Zwicky 18 [below, left], the galaxy may be as young as 500 million years old.
What is bigger than a galaxy
The Universe is the biggest and contains billions of galaxies. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
Do we live in 1 galaxy
Our Sun is one of at least 100 billion stars in the Milky Way, a spiral galaxy about 100,000 light-years across. The stars are arranged in a pinwheel pattern with four major arms, and we live in one of them, about two-thirds of the way outward from the center.
How old is black hole
The tiniest members of the black hole family are, so far, theoretical. These small vortices of darkness may have swirled to life soon after the universe formed with the big bang, some 13.7 billion years ago, and then quickly evaporated.
