Novas

Moon (Although some moons are larger than planets), Planet, (Although some planets are larger than Stars) Star, Solar System, Supernova, Cluster, Super Cluster. Universe.

Actually if you think about if we were th only ones; what about the conspiracy of aliens we have got quite a lot of evidence for that but is it true, its all about thinking. Seeing is believing !

It depends how far it is.Super nova's are VERY big.you would probably not see it but they are big.There were no close super nova's near earth.They were all at the other side of the galaxy or somewhere in another galaxy.

The correct order is red giant followed by white dwarf. A red giant is a stage in the life cycle of a star where it has expanded and cooled. After the red giant phase, the star sheds its outer layers and the core collapses to form a white dwarf.

Stars that explode are referred to as supernovae. This explosive event occurs when a massive star reaches the end of its life cycle and undergoes a rapid and intense process of collapse and explosion. Supernovae release an incredible amount of energy and can briefly outshine an entire galaxy.

Main sequence stars with masses greater than about 1.3 times that of the Sun have convective cores. This includes stars like our Sun and more massive ones. During the main sequence phase, nuclear fusion occurs in the core of these stars, generating energy that drives convection in their interiors.

A supernova is an explosive event that can increase a star's luminosity to as much as 1000 times that of a nova. Supernovae occur when a massive star reaches the end of its life and undergoes a catastrophic collapse, releasing an immense amount of energy in the process.

1. If the mass of the dead star is high enough, gravity will overcome electron degeneracy pressure holding the dead star up. Electrons will fall from their ground state into the nuclei, turning protons into neutrons and all the nuclei will merge forming a neutron star held up by neutron degeneracy pressure. If it stops here, the infalling outer layers that have not yet become neutrons crash into the super hard surface of the neutron star initiating a shockwave that propagates outward. This outgoing shockwave creates the supernova.
2. If the mass of the neutron star is high enough, gravity will overcome neutron degeneracy pressure holding the neutron star up. A black hole will form. However all of the neutron star can't fall into the black hole instantly. A shockwave forms just outside the event horizon that propagates outward. This outgoing shockwave creates the supernova.

A supernova can create shockwaves that push interstellar material together, facilitating the formation of new stars and planetary systems. The heavy elements produced in supernovae enrich the interstellar medium, providing the building blocks necessary for the formation of planets and life. Additionally, supernovae can create neutron stars and black holes that may serve as navigational aids or sources of energy for interstellar travel in the future.

When a star explodes in a supernova, its core can collapse into either a neutron star or a black hole, depending on the mass of the original star. For stars with masses less than about 3 times that of the Sun, the core collapses into a neutron star, which is an extremely dense and compact object. For more massive stars, the core collapses further into a singularity, forming a black hole.

a super nova is not something that anything goes into. A SUPER NOVA is a part of a stars life cycle when it explodes. THEN all the dust and chips of the star reunite in a super nova remnent forming a COMPLETELY NEW STAR.

A supernova is not a single star, but an event that occurs to the most massive stars when they reach the end of their life. Therefore it cannot be named.

See related questions for details on Supernova

The heaviest element that can be produced prior to supernova is Iron (Fe).

No, the sun will not explode. It is currently in the main sequence phase of its life cycle, converting hydrogen to helium through nuclear fusion. Eventually, it will expand into a red giant and then shrink into a white dwarf.

The Sun is an averaged size star so it doesn't have enough mass to explode. Instead it reheats and expands into a red giant, so earth will be vaporized within the sun! Oh yeah and don't freak out, it's not going to happen within 5 billion years. Plenty of time to get that degree and a good job, and to raise a family. In four billion years 4,000,000,000 Roughly 4-5 billion years but the Sun will not go dark for roughly 20-30 billion years.

Although the Sun will continue to shine for billions of years Earth will be uninhabitable in roughly 1 billion years this is because as the Sun ages it gets hotter and brighter and in about 1 billion years the temp on Earth will be too hot for liquid water to exist on the surface.

Life could not exist for any reasonable length of time on the Earth without the energy from the Sun, which powers the water cycle and provides sunlight for plant life. Some tiny areas, heated by volcanoes and the Earth's molten magma, could possibly still support bacterial life. But the oceans and even the atmosphere would freeze solid where it was not warm enough. More than 99% of Earth would be covered with a thin hard layer of frozen gases at a temperature near absolute zero.

Note that this same scenario would apply if the Earth was thrown out of its current orbit, as similar conditions would befall Earth if it was anywhere farther from the Sun than Jupiter (about 5 times farther from the Sun than Earth).

Space travel involves launching a spacecraft into orbit using powerful rockets. Once in orbit, the spacecraft can travel to its destination by using thrusters to adjust its trajectory. The spacecraft relies on onboard systems to navigate through space and may use gravity assists from planets for extra momentum. Re-entry back to Earth is typically done by entering the atmosphere at a specific angle to avoid burning up in the intense heat.

Depends on the age of the neutron star. As a neutron star no longer has any method to produce heat, it will slowly cool over time.

A young neutron star will have a core temperature of about 106 kelvin.

Stars are giant nuclear fusion reactors; with their intense heat and pressure from their immense gravity, they smash hydrogen atoms into helium -- this is called fusion. Helium atoms fuse together to become heavier elements; this is how all of the elements past hydrogen and helium were created (hydrogen was created by the creation of the universe, and it is believed some helium may have been created then, too, but every element past helium owes its existence to the nuclear fusion in stars). This fusion process generates energy for the star (some of the particles making up the atoms that are smashed together are converted into energy during the fusion process), which is why stars continue to burn for so long -- the fusion of atoms generates energy that fuses more atoms together.

As atoms get heavier, however, they are more resistant to fusion and it takes more energy to smash the atoms together. Past iron, atoms require more energy to fuse together than the energy that comes out of the fusion process. The fusion process continues, however, because not all of a star fuses to the same element at the same time (100% of the hydrogen doesn't fuse immediately into helium ... by the time iron atoms are created, there is still plenty of hydrogen still fusing). Because stars are fluid-like plasma, heavier atoms readily sink through to the star's core. It is not a steady process, however ... heavier atoms can sometimes trap lighter ones beneath them. Gradually, though, more and more iron concentrates in the core ... but while fusion is still going on from lighter elements, the iron atoms continue fusing to heavier elements.

Eventually, however, there are too many heavy atoms in a star's core and the fusion fire seizes. The iron atoms collapse and a huge explosion is generated -- depending on the star's size, this can be a nova or supernova (plural novae or supernovae). The energy of this explosion blasts away the dead star's material, including the iron and heavier elements. The heavier elements will tend to form dust and other debris, that may eventually join with clouds of hydrogen to form part of a new solar system.

This is how the elements present in our solar system, and right here on Earth, came to be -- from carbon which makes up most life down to the ultra-heavy atoms like uranium, all of it was created in the fusion of stars and blasted away by novae and supernovae.

Before a white dwarf, a star would undergo the red giant phase. After a white dwarf, a star may end its life cycle as a black dwarf, although no black dwarfs are currently known to exist in the universe due to the long timescales required for a white dwarf to cool down.

Yes, white dwarfs are extremely hot when they first form but over billions of years they gradually cool and dim as they release their leftover thermal energy into space. This cooling process is what eventually transforms them into cold, dark celestial objects known as black dwarfs.