Is it true that we come from stars?

Question

I heard that we come from stars in outer space... or star dust I suppose I shall say- to be more specific.

Answer 1

Like the late Dr Carl Sagan says in his book and Tv series Cosmos : We are made from star stuff.
The reasoning behind this is that when the universe came into existence, particles of matter formed and these came together to form the simplest element : atoms of hydrogen. Right now, our Sun is turning approx 600 million tons of hydrogen into helium every second through nuclear fusion. This is what yellow stars do. When our Sun changes to a Red Giant, it will then be turning helium into heavier elements. All stars are fusion reactors making the elements. In the later history of the universe, stars clumped together to form galaxies. Some of the spewed out star stuff from things like supernova explosions was sent drifiting to clump and form planets. Earth formed in this way--the accumulation of matter clumped together by gravity. We come from the earth. Everything you see around you including you and other people, plants, animals, things is all made from chemical elements that were created in the interiors of stars.

Answer 2

Well, I heard, or remember from something I read, that a star would be a supernova, explode, and create a huge amount of star dust, I think it's called. The star dust would then push itself together and create another star. Not all the dust gets put into the new star, and that left over dust creates the planets. Seeing as Earth is a planet, I find it natural to assume that yes, we are made of star dust, technically. :)

Answer 3

at the beginning of the universe, there was only hydrogen... The hydrogen condensced in "small" places and gave birth to stars.

The stars used the hydrogen in fusion reactions to produce energy, light and heavier elements like Helium, Lithium, Carbon, Oxygen, Nitrogen... (everything you can find on earth, that is).

Later (MUCH later), the 1st stars died and exploded as supernovaes expeling all the heavy elements in space to form planets....

So, since our bodies contain Carbon, Oxygen and a lot of other "heavy" elements, then yes, we are star dust... but honestly, it doesn't change anything.

Answer 4

Yes, all of the elements that are not hydrogen are byproducts of the fusion reaction that powers stars. Anything heavier than Iron (like gold) was created from a supernova explosion.

Carl Sagan explained it much more eloquently in Cosmos, but that's the general idea. I believe his words were "we are made of star stuff"

Answer 5

Sure! Read all the proof in Erich Von Daniken's books - Chariots of the Gods, Gods from Outer Space etc.

Answer 6

I have for sure had teachers in school that where aliens....but since I don't feel related to them in any way, there may be more that one answer to that.

Well more seriously:
all matter on this planet was at sometime floating free in space following the big bang (if you believe that theory), so YES. The actual time of arrival of the key matters for life on this planet is another matter....

Answer 7

No. The fossil record clearly shows that our ancestors lived here as well. It is possible that organic compounds brought to the Earth by meteorites have contributed to the early development of life. But then we're talking about the first primitive cell, before there was anything like bacteria, let alone more advanced life forms.

Answer 8

Only Dolly Parton came from Stars!
I came from some of God's most warm loving creations!

Answer 9

We are in the solar system with the star 'sun' at the centre. We are still in star family only.
VR

Answer 10

a comet collided with earth before life existed, bacteria form the comet interacted with the atmosphere, there may humans in other parts of the galaxy, if this is true