Is there a galaxy with no stars?

Is there a galaxy with no stars?

A dark galaxy is a hypothesized galaxy with no, or very few, stars. They received their name because they have no visible stars, but may be detectable if they contain significant amounts of gas. Astronomers have long theorized the existence of dark galaxies, but there are no confirmed examples to date.

How many stars are in every galaxy?

Using the Milky Way as our model, we can multiply the number of stars in a typical galaxy (100 billion) by the number of galaxies in the universe (2 trillion).

Is every star part of a galaxy?

Answer: No, not all stars are in a galaxy. They may have once belonged to a galaxy, but they are not a part of it any more. Some of these so-called “stellar outcasts” or “intergalactic stars” have actually been observed by NASA’s Hubble Space Telescope.

Does every galaxy have planets?

Our Milky Way galaxy is just one of the 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’s the closest star to Earth?

Distance Information Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away.

What’s beyond the universe?

The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.

How big is our galaxy?

Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. That sounds huge, and it is, at least until we start comparing it to other galaxies. Our neighboring Andromeda galaxy, for example, is some 220,000 light-years wide.

What is outside of a galaxy?

Intergalactic space is more than just an empty void. ( The vast voids between galaxies can stretch millions of light-years across and may appear empty. But these spaces actually contain more matter than the galaxies themselves.

Is every galaxy a black hole?

The key results are: Supermassive black holes are so common, nearly every large galaxy has one. A black hole’s mass is proportional to the mass of the host galaxy, so that, for example, a galaxy twice as massive as another would have a black hole that is also twice as massive.

How many Earths are in a galaxy?

This means that about one in six stars has an Earth-size companionexoplanet. As there are about 100 billion stars in the galaxy, there are at least 17 billion Earth-size worlds in this galaxy alone. Our own star possesses two Earth-size worlds.

How many universes are there?

In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.

What’s a cool galaxy name?

• Andromeda Galaxy.
• Canis Major Dwarf Galaxy.
• Cygnus A.
• Maffei I and II.
• Magellanic Clouds.
• Milky Way Galaxy.
• Virgo A.

• Andromeda Galaxy.
• Canis Major Dwarf Galaxy.
• Cygnus A.
• Maffei I and II.
• Magellanic Clouds.
• Milky Way Galaxy.
• Virgo A.

How many galaxies do we live in?

The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.

Will we ever reach another star?

The nearest star is four light years away. That means that light, traveling at 300,000 kilometers per second would still need FOUR YEARS to reach the nearest star. The fastest spacecraft ever launched by humans would need tens of thousands of years to make that trip.

What star is bigger than Earth?

What is bigger the star or the earth? Despite being very large, at around 1,4 million kilometers in diameter, the Sun is far from being the biggest star in the universe. … But the largest known star is UY Scuti, located 9500 light years from Earth, in the constellation of Scutum.

Will we ever travel to another galaxy?

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 many stars are in all of space?

There are approximately 200 billion trillion stars in the universe. Or, to put it another way, 200 sextillion. That’s 200,000,000,000,000,000,000,000!

Does every galaxy contain billion stars?

Our galaxy, the Milky Way, is typical: it has hundreds of billions of stars, enough gas and dust to make billions more stars, and at least ten times as much dark matter as all the stars and gas put together.

How many stars are in each planet?

planetary system
Distance to the Kuiper Belt	50 AU
number of known stars	1 Sol
Number of known planets	8 Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Number of known dwarf planets	5 Ceres, Pluto, Haumea, Makemake, Eris

planetary system
Distance to the Kuiper Belt	50 AU
number of known stars	1 Sol
Number of known planets	8 Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Number of known dwarf planets	5 Ceres, Pluto, Haumea, Makemake, Eris

How many galaxies are in the Milky Way?

There are around fifty galaxies in the Milky Way, the largest of which is the Large Magellanic Cloud. This satellite galaxy has a diameter of only 14,000 light-years. The Large Magellanic Cloud may have as many as 10 billion stars within it.