- What is a massive star?
- What is the biggest nebula in the universe?
- What is it like inside a nebula?
- Will we see a supernova?
- What would happen if a supernova hit Earth?
- How big is a nebula?
- Is a nebula a dead star?
- Is Earth in a nebula?
- Are nebulae dangerous?
- What is the most beautiful nebula?
- What is the easiest nebula to see?
- How is a nebula formed?
- How old is a supernova?
- Will our Sun supernova?
- What causes a star to die?
What is a massive star?
A massive star is a star that is larger than eight solar masses during its regular main sequence lifetime.
Massive stars are born, just like average stars, out of clouds of dust called nebulae..
What is the biggest nebula in the universe?
Tarantula NebulaLargest Nebula: The Tarantula Nebula Both the largest known nebula and most active star-forming region in our local galactic neighborhood, the Tarantula Nebula stretches for more than 1,800 light-years at its longest span.
What is it like inside a nebula?
The inside of a nebula would not look that much different from what we see when we look out at space. In the visible spectrum is may look like a faint haze or darkening of the stars. … These images are combined to highlight the nebula. Often you can see right through them in some wavelengths of light.
Will we see a supernova?
Although supernovae are relatively rare events, occurring on average about once every 50 years in the Milky Way, observations of distant galaxies allowed supernovae to be discovered and examined more frequently. The first supernova detection patrol was begun by Zwicky in 1933.
What would happen if a supernova hit Earth?
… were a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions. X-rays and more energetic gamma-rays from the supernova could destroy the ozone layer that protects us from solar ultraviolet rays.
How big is a nebula?
How Big are Nebulae? Most nebula are huge and span light years–even millions of light years across. On average, nebulae occupy trillions and trillions of miles in space. For perspective, the Earth’s diameter is just under 8,000 miles and the Sun is about 865,000 miles in diameter.
Is a nebula a dead star?
A nebula is a cloud of gas and dust in space. Some nebulae (more than one nebula) are regions where new stars are being formed, while others are the remains of dead or dying stars.
Is Earth in a nebula?
Nebulae exist in the space between the stars—also known as interstellar space. The closest known nebula to Earth is called the Helix Nebula.
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.
What is the most beautiful nebula?
The 5 Most Beautiful Nebulae#5 Most Beautiful Nebulae: The Cat’s Eye Nebula.#4 Most Beautiful Nebulae: The Butterfly Nebula.#3 Most Beautiful Nebulae: The Hourglass Nebula.#2 Most Beautiful Nebulae: The Crab Nebula.#1 Most Beautiful Nebulae: The Eagle Nebula.
What is the easiest nebula to see?
Orion nebulaThe Orion nebula is the quickest and easiest one to locate in the sky. It is as far as almost 1300 light-years from our planet. It is called so because it is located in the Orion constellation. The Orion Nebula is also known as Messier 42, NGC 1976 or M42.
How is a nebula formed?
The Short Answer: A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form.
How old is a supernova?
Astronomers have discovered traces of a star that went supernova about 140 years ago as viewed from Earth*, around the time of the U.S. Civil War and the publication of Charles Darwin’s The Origin of Species. The expanding debris cloud, or remnant, known as G1.
Will our Sun supernova?
Our sun, for example, doesn’t have enough mass to explode as a supernova (though the news for Earth still isn’t good, because once the sun runs out of its nuclear fuel, perhaps in a couple billion years, it will swell into a red giant that will likely vaporize our world, before gradually cooling into a white dwarf).
What causes a star to 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’.