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What are galaxies mainly made of?
Galaxies are mainly made up of stars, gas, and dust. Stars are the primary components, with gas (mostly hydrogen and helium) and dust filling the space between the stars. Dark matter is also thought to make up a significant portion of a galaxy's mass, even though it cannot be seen.
Why are older stars located at the center of a spiral galaxy while younger stars make up arms of a spiral galaxy?
Older stars are generally towards the centre of a galaxy as they will be the first to accumulate around the galactic centre. Because they are older, there is less "free" hydrogen, so new star formation will occur wherever, there is enough matter to form a new star. This generally is around the outer edges of a galaxy.
How can astronomer's make all these conclusions about star formation if no one is able to actually observe it from start to finish?
Astronomers study star formation by observing young stars and star-forming regions, tracking their properties and evolution over time. They use telescopes that can detect different wavelengths of light, such as infrared and radio waves, to peer through dust clouds and see where stars are forming. By combining observational data with theoretical models, astronomers can deduce the processes involved in star formation.
What effect does interstellar dust have on the light from distant stars?
Interstellar dust scatters and absorbs light, causing it to appear redder and dimmer. This reddening effect is known as interstellar extinction, which can make it challenging to accurately measure the properties of distant stars. Scientists use techniques like infrared and radio astronomy to study objects behind interstellar dust.
The space between stars is known to contain what?
The space between stars is known to contain gas, dust, and dark matter. These elements make up the interstellar medium, which plays a crucial role in the formation of new stars and planetary systems. The interstellar medium also influences the dynamics of galaxies and the evolution of the universe.
Do mother stars make their own baby stars?
No. New stars form in dense clouds of dust and gas, sometimes in response to the shockwave caused by a "nearby" supernova.
Do scientist believe that new stars form inside nebulas?
Scientists do believe that new stars form inside the nebulae. Dust and gas that are in the clouds begin to contract and squish together. The clouds will then become hotter and dense enough to make a new star.
Why did they make stars?
Stars are formed from clouds of gas and dust in space, mainly composed of hydrogen and helium. The intense heat and pressure from gravity within these clouds causes nuclear fusion, leading to light and heat production. Stars play a crucial role in the universe by generating energy, producing elements through fusion, and influencing the dynamics of galaxies and solar systems.
Who created stars?
Stars are formed from vast clouds of gas and dust in space. The force of gravity causes these clouds to collapse, and as they do, the temperature and pressure increase until nuclear fusion reactions are triggered. These reactions create the energy and heat that make stars shine.
Why were the stars created?
Stars are formed from a cloud of gas called nebula. As time passes by gravity pulles* this gas together. pressure and gravity make stars. *PULLS and they are created by an enormous clouds of dust, then the hydrogen gas would be pulled in by gravity and space, causing an explosion, then that expolosion would get bigger and bigger over thousands and thousands of years
What component parts make up a galaxy?
gas, dust, stars, and planets ^ . ^
What are glowing gas clouds that will eventually become stars?
Glowing gas clouds that will eventually become stars--as the question is phrased the answer must be: Reflection Nebulae. These are clouds of gas lit by nearby stars. Eventually this gas will be incorporated in new stars, but probably not for a long, long time.The asker may have been after: What are the interstellar gas clouds glowing in THE INFRARED that will eventually become stars?The answer to this is a proto-stellar cloud.Previous answer:ProtostarsThis is not correct. A protostar is exactly what it sounds like--a star in the process of forming. In the protostar state, a gaseous mass has formed a central clump surrounded by a thick disk of gas and dust.The cloud of gas and dust surrounding a protostar make it very hard to detect, and in fact they are only seen in the deep infrared--they are not visible to the human eye.
What clouds appear when tornadoes occur?
Tornadoes typically form within cumulonimbus clouds, which are large and vertically developed clouds associated with thunderstorms. These clouds can have a distinct anvil shape and may exhibit features such as a rotating updraft known as a mesocyclone. However, tornadoes themselves are not visible until they make contact with the ground, at which point they can pick up debris and dust, creating a visible funnel cloud.
What do billions of stars make up?
Billions of stars make up galaxies. Galaxies are vast systems of stars, planets, gas, and dust that are held together by gravity. Our Milky Way galaxy, for example, consists of billions of stars including our Sun.
How do you make fairy dust with a computer keyboard?
asterix mark stars , full stops, apostrophes, ."*';.*,.;"*..'.,;"*
What does a tornado do to make dust?
Tornadoes can pick up dust and debris from the ground as they travel, creating a dusty appearance. The strong winds within a tornado can lift dirt particles into the air, making them visible as swirling dust clouds.
What causes the phenomenon of orange clouds at night?
Orange clouds at night are typically caused by the scattering of sunlight by particles in the atmosphere, such as dust or pollution. This scattering effect can make the clouds appear orange or red in color when viewed from certain angles during sunset or sunrise.
