Do nebulae have planets?Space and Astronomy
A planetary nebula is a region of cosmic gas and dust formed from the cast-off outer layers of a dying star. Despite their name, planetary nebulae have nothing to do with planets.
Can planets exist in a nebula?
The answer would be yes. As the planet orbits its star that orbits the center of the galaxy, the planet and its star could enter a nebula and pass through that nebula for thousands or millions of years and then emerge on the other side of the nebula.
What is inside a nebula?
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.
Are there solar systems in nebulae?
Solar Nebula. Our solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud. The cloud contracted under its own gravity and our proto-Sun formed in the hot dense center. The remainder of the cloud formed a swirling disk called of the solar nebula.
How many planets are in a nebula?
There are believed to be about 20,000 objects called planetary nebulae in the Milky Way Galaxy, each representing gas expelled relatively recently from a central star very late in its evolution. Because of the obscuration of dust in the Galaxy, only about 1,800 planetary nebulae have been cataloged.
Can Earth Survive in a nebula?
Video quote: Space they are vast sometimes taking up hundreds of light-years of space. But with all that size they aren't massive a nebula the diameter of the earth would only have a mass of a few kilograms.
What is the difference between nebula and planetary nebula?
A: A nebula refers to clouds of dust and gas that lie between stars, in so-called interstellar space. A planetary nebula is a special type of nebula made when the outer layers of an old, giant star are thrown off into space.
What does a planetary nebula have to do with planets?
Despite the name, they have nothing to do with planets. They got this name because astronomers using small telescopes long ago, thought they looked a bit like planets. Low-mass stars turn into planetary nebulae towards the end of their red giant phase.
Is nebula a galaxy?
A nebula is a cloud of dust and gas, usually tens to hundreds of light years across. A galaxy is much larger — usually thousands to hundreds of thousands of light years across. Nebulae are one of the many things that galaxies are made of, along with stars, black holes, cosmic dust, dark matter and much more.
Will our Sun become a nebula?
Ultimately, most scientists believe that the Sun will become a planetary nebula. As is progresses though the red giant stage, the outer envelope of the Sun will be blown off into space.
Will Earth be swallowed by the Sun?
Drag from the chromosphere of the Sun would reduce Earth’s orbit. These effects will counterbalance the impact of mass loss by the Sun, and the Sun will likely engulf Earth in about 7.59 billion years. The drag from the solar atmosphere may cause the orbit of the Moon to decay.
What year will the Sun explode?
about 5 billion years
But in about 5 billion years, the sun will run out of hydrogen. Our star is currently in the most stable phase of its life cycle and has been since the formation of our solar system, about 4.5 billion years ago.
What will happen 5 billion years from now?
Scientists have long known the fate of our solar system – and likely the fate of Earth itself. In a few billion years, the Sun will run out of fusion fuel and expand to a “red giant” phase, likely swallowing everything in the solar system up to the orbit of Mars.
How long will humans last?
Humanity has a 95% probability of being extinct in 7,800,000 years, according to J. Richard Gott’s formulation of the controversial Doomsday argument, which argues that we have probably already lived through half the duration of human history.
What year will the Earth be destroyed?
This means Earth will likely still be vaporised by the growing star. But don’t worry, this scorching destruction of Earth is a long way off: about 7.59 billion years in the future, according to some calculations.
Would life exist without the moon?
Turns out, the moon isn’t just a beacon of light in the night sky; its existence is crucial to the delicate balancing act that makes life on Earth possible. The moon has the largest influence on Earth’s tides and, without it, high and low tides would shrink by an estimated 75%.
What if Earth had two suns?
Video quote: Each half as bright as the Sun. This would keep our planet warm enough to sustain. Life. Because the total gravity of the two stars would be stronger it would take the earth 280. Days instead of 365.
What if the Sun exploded?
The good news is that if the Sun were to explode – and it will eventually happen – it wouldn’t happen overnight. … During this process, it will lose its outer layers to the cosmos, leading to the creation of other stars and planets in the same way that the violent burst of the Big Bang created Earth.
What if Earth had rings?
The rings would probably reflect so much sunlight that the planet would never fully plunge into darkness, but remain in a gentle twilight even in the depth of night. During the day, the rings could potentially cause light levels on Earth to skyrocket [source: Atkinson].
Can Earth have 2 moons?
Earth has a second moon, of sorts, and could have many others, according to three astronomers who did calculations to describe orbital motions at gravitational balance points in space that temporarily pull asteroids into bizarre orbits near our planet.
What if Earth had two moons?
The consequences of a second moon orbiting the Earth depend on how massive that moon is and how far from the Earth it orbits. The most obvious effect would be that the ocean tides would be altered. Tides could be either smaller or higher and there could be more than two high tides per day.
What happens if moon is destroyed?
The most immediate consequence of destroying the Moon would be a much darker night sky. The Moon is the largest and most-reflective object in our sky, outside of the Sun of course. Losing it would make the rest of the sky comparatively brighter, which might be a nice side effect for ground-based deep-sky astronomers.
What would happen if the sun disappeared for 5 seconds?
Consider this: if the sun was to disappear for exactly five seconds it would be 8.2 minutes AFTER the fact before anyone on Earth would even know that it had happened, so by the time we were aware the event would have passed.
What if the sun disappeared?
If the sun was no more, then Earth would be drawn to a new centre of gravity. The gravity of Earth and the rest of the solar system would be affected and – with there being no constant energy supply from the sun – Earth would start drifting into space.
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