- Are nebulae dangerous?
- How long does a star live for?
- What would happen if you went into a nebula?
- What causes a dark nebula?
- What are nebulae mostly made of?
- Is Earth in a nebula?
- Why do stars die?
- Why do stars twinkle?
- What is inside a planetary nebula?
- What is it like inside a nebula?
- Why is the nebula dark?
- How does a nebula become a star?
- What is the reflection nebula made of?
- Can you live in a nebula?
- Is a nebula bigger than a galaxy?
Are nebulae dangerous?
There’s nothing especially dangerous about the nebula specifically, deep space will kill your crew in time, if their ship is damaged.
They need to escape this nebula to get to somewhere they can do long-term repairs on their ship..
How long does a star live for?
about 10 billion yearsStars live different lengths of time, depending on how big they are. A star like our sun lives for about 10 billion years, while a star which weighs 20 times as much lives only 10 million years, about a thousandth as long. Stars begin their lives as dense clouds of gas and dust.
What would happen if you went into a nebula?
Traveling through one would be almost indistinguishable from traveling anywhere else in space. You may not even notice it with unaided eyes. On a dark night, you can see the Orion Nebula as a very faint patch of gray light. Amazingly, getting closer to the nebula would not increase its brightness per square arc second.
What causes a dark nebula?
The extinction of the light is caused by interstellar dust grains located in the coldest, densest parts of larger molecular clouds. … Dark clouds appear so because of sub-micrometre-sized dust particles, coated with frozen carbon monoxide and nitrogen, which effectively block the passage of light at visible wavelengths.
What are nebulae mostly made of?
Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas.
Is Earth in a nebula?
The planet Earth is not part of any particularly named Nebula . Earth is part of the Solar System which is part of our home galaxy, the so-called “Milky Way”, which is part of the so-called Local Group , a collection of more than 50 other galaxies in the “neighborhood” of our own galaxy.
Why do stars die?
Stars die because they exhaust their nuclear fuel. … Really massive stars use up their hydrogen fuel quickly, but are hot enough to fuse heavier elements such as helium and carbon. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’.
Why do stars twinkle?
The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. … To our eyes, this makes the star seem to twinkle.
What is inside a planetary nebula?
A planetary nebula, abbreviated as PN or plural PNe, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. … All planetary nebulae form at the end of the life of a star of intermediate mass, about 1-8 solar masses.
What is it like inside a nebula?
Nebulae are pretty only when they are hundreds of light-years away. They look thick and cloudy only because you see the structures of light-years in thickness. Once you’re close to them, their light spreads out so much that you can’t see them. You could fly your spaceship right into the nebula and never even know it.
Why is the nebula dark?
Dark Nebula. Dark nebulae are interstellar clouds that contain a very high concentration of dust. This allows them to scatter and absorb all incident optical light, making them completely opaque at visible wavelengths.
How does a nebula become a star?
Star Forming Nebula Stars are born in clouds of gas and dust. … One day, this core becomes hot enough to ignite fusion and a star is born. Not all of the material in the collapsing cloud ends up as part of a star — the remaining dust can become planets, asteroids or comets … or it may remain as dust.
What is the reflection nebula made of?
A reflection nebula is a cloud of gas and dust which does not create its own light, but instead shines by reflecting the light from nearby stars. The brightest reflection nebulae are places where new stars are being formed. Here the gas and dust is thick and shines by the light of new, bright stars.
Can you live in a nebula?
Possibly, but probably not. It is not known when life formed on Earth, but Earth was once part of a nebula, and it now has life. … Solar nebulae like the one that formed our solar system are essentially cleared by the gravity of the sun and planets within 10–100 million years.
Is a nebula bigger than a galaxy?
Nebula is a cloud of interstellar dust, while galaxy is a huge collection of stars. Size of a galaxy is much larger than size of a nebula. … Life of several stars is connected to life of a galaxy while life of only one star is associated with a nebula.