Recent searches (0)
FOR AGES 3 YEARS TO 18 YEARS
Categorizing stars based on their spectral features is known as stellar classification in astronomy.
When a star bursts into a supernova and causes supernova explosions, it can become a nebula or a neutron star if it's not very large. Usually, a dense core and an expanding cloud of hot gas known as a nebula is left behind, and a larger one might lead to a black hole.
According to a new study, astronomers have discovered evidence of explosions caused by dead stars colliding with live stars, possibly indicating the existence of a new type of supernova.
The process through which a star evolves is known as stellar evolution. A star's lifespan varies widely depending on its mass, ranging from a few million to billions of years for the most massive, to much longer than the universe's history for the least massive. When gas and dust clouds termed nebulae or molecular clouds meet, stars are born.
The star's electromagnetic radiation is split into a spectrum by a prism or diffraction grating, resulting in a rainbow of colors interspersed with spectral lines. Each line represents a specific chemical element or molecule, with the line strength representing the element's abundance.
When stars die, massive explosions called supernovas can occur. These outbursts can temporarily outshine all of the other suns in these stars' galaxies, allowing them to be seen from halfway across the universe. A sequence of nuclear events is released when the core of a star compresses to a critical point. For a period, this fusion prevents core-collapse for the time being. The star's gravity seeks to crush it into the tiniest, tightest ball imaginable. On the other hand, the nuclear material burning in the star's core exerts a great deal of outward pressure.
In the corner of the night sky, a blindingly bright star appears - it wasn't there only a few hours ago, but now it shines like a beacon. That dazzling star is no longer a star. The dazzling point of light is the supernova explosion, which occurs when a star reaches the end of its existence. When a huge star approaches the end of its life and bursts, it's known as a supernova. It emits enormous amounts of energy and light. A supernova shockwave has the potential to cause the birth of new stars. Let's explore more supernova facts.
A real star collapses in on itself in less time than it takes us to pronounce the term supernova, generating a black hole, making the denser elements in the universe, and then blasting forth with the energy of millions or even billions of stars. The fall occurs so swiftly that it generates massive shock waves, causing the star's outer part to burst! However, this isn't always the case. Let's explore more about the different types of supernovas.
A binary star system detonated 12 million light-years away in the center of the M82 galaxy. One white dwarf star's density had progressively grown until stuff spewed onto its surface by its larger sibling had built up to a point where it could no longer be avoided. Carbon and oxygen fused until they detonated in a wild display of light and energy at the white dwarf's core.
Somewhere in the universe, a star is nearing the end of its life. Perhaps it's a big star collapsing due to its gravitational pull. Or it might be a dense cinder of a star that has been taking stuff from a partner star until it can no longer handle its mass.
Read The Disclaimer
Kidadl is independent and to make our service free to you the reader we are supported by advertising.
We hope you love our recommendations for products and services! What we suggest is selected independently by the Kidadl team. If you purchase using the buy now button we may earn a small commission. This does not influence our choices. Please note: prices are correct and items are available at the time the article was published.
Kidadl has a number of affiliate partners that we work with including Amazon. Please note that Kidadl is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.
We also link to other websites, but are not responsible for their content.
Remember that you can always manage your preferences or unsubscribe through the link at the foot of each newsletter.