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The lightest elements (hydrogen, helium, deuterium, lithium) were produced in the Big Bang nucleosynthesis. The temperatures in the early universe were so high that fusion reactions could take place. This resulted in the formation of light elements: hydrogen(1), deuterium(a stable isotope of hydrogen), helium(2) in two isotopes, lithium(3) and trace amounts of Beryllium(4). Nuclear fusion in stars converts hydrogen into helium. In stars less massive than the Sun, this is the only reaction that takes place. In stars more massive than the Sun (but less massive than about 8 solar masses), further reactions that convert helium to carbon and oxygen take place in successive stages of stellar evolution. In the very massive stars, the reaction chain continues to produce elements like silicon(14) up to iron(26). Elements higher than iron cannot be formed through fusion as one has to supply energy for the reaction to take place. In a supernova explosion, neutron capture reactions take place (this is not fusion), leading to the formation of heavy elements. This is the reason why it is said that most of the stuff that we see around us come from stars and supernovae (the heavy elements part). If you go into technical details, then there are two processes of neutron capture called rapid process (r-process) and the slow process (s-process), and these lead to formation of different elements.
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Are there stars in the stratosphere and are there stars in the mesosphere and are there stars in the thrmosphere?
Stars are not found in Earth's atmosphere as they are outside our planet. The stratosphere, mesosphere, and thermosphere are atmospheric layers above the surface of the Earth where stars can be observed in the night sky, as they are part of the universe beyond our planet.
What are that five stars closet to the stars?
The five stars closest to Earth are Alpha Centauri, Proxima Centauri, Barnard's Star, Wolf 359, and Luhman 16. These stars are all part of our Milky Way galaxy and are located within about 10 light years from Earth.
Are there moons and stars on planet earth?
No, there are not moons or stars ON planet earth, but there are moons and stars around planet earth. == ==
What is the difference between meteors and stars?
Meteors are made up of rocks and ice and dust from space where as shooting stars are falling stars.
In what type of system do the Earth Sun planets and stars revolve?
The Sun, Earth and other planets, along with many other items are part of a Solar System.
Are there falling stars?
There are no "falling stars". The phenomena we call a "falling star" is actually a meteor burning up as it enters the Earth's atmosphere.
Can stars falls on the earth?
No, for the very good reason that stars, even the smallest ones, are much more massive than the Earth. If anything were falling, it would be the Earth falling into the star.
Are constellations stars falling towards earth?
No. Constellations are arrangements of stars that appear to form pictures.
Why are some meteors sometimes called as falling stars?
Before people knew what meteors were, they thought that they were stars which were falling from the sky towards earth.
When did Falling Stars happen?
Falling Stars happened in 2007.
Are meteors falling stars?
Yes falling stars and shooting stars are meteors and meteorites.
Can shooting stars be a part of constellations?
Shooting stars are not actually stars but rather meteors that enter Earth's atmosphere and burn up, so they are not part of constellations. Constellations are patterns of stars as seen from Earth, and shooting stars move too quickly to be part of a fixed pattern.
When was Falling Stars created?
Falling Stars was created on 2007-08-24.
Can a star fall on earth?
No. So-called "falling stars" are in fact meteors, which are tiny bits of dirt that burn up in the atmosphere, giving a streak in the sky giving the name "falling stars" or "shooting stars". An actual star getting near Earth would burn up the Earth. The nearest star to us is the Sun, at about 93 million miles away. There is no chance of it hitting us.
Why are meteors called falling stars?
They are called falling stars because the narrow streak of light looks as if a star is falling from the sky.
When was The Deconstruction of Falling Stars created?
The Deconstruction of Falling Stars was created on 1997-10-27.
When did Stars Falling From the Sky end?
Stars Falling From the Sky ended on 2010-03-16.
