Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.astronomy.com/magazine/ask-astro/2016/03/one-star-or-many
Äàòà èçìåíåíèÿ: Unknown
Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 11:03:26 2016
Êîäèðîâêà: ISO8859-5

Ïîèñêîâûå ñëîâà: ï ï ï ï ï ï ï ï ï ï ï ï ð ï ð ï ð ï ð ï ð ï
We are made up of elements forged in stars. But with the vast distances between stars, are we the product of only one star or many? | Astronomy.com
Tonight's Sky
Sun
ò??
ò??
Sun
Moon
ò??
ò??
Moon
ò??
ò??
Mercury
ò??
ò??
Mercury
ò??
Venus
ò??
ò??
Venus
ò??
Mars
ò??
ò??
Mars
ò??
Jupiter
ò??
ò??
Jupiter
ò??
Saturn
ò??
ò??
Saturn
ò??

Tonight's Sky ò?? Change location

OR

Searching...

Tonight's Sky ò?? Select location

Tonight's Sky ò?? Enter coordinates

ÒÀ '
ÒÀ '

We are made up of elements forged in stars. But with the vast distances between stars, are we the product of only one star or many?

Ken Stodola, Marion, Iowa
RELATED TOPICS: STARS
We are made up of elements forged in stars.
Not only are you made of many stars; you’re made of many generations of stars.

There is strong observational evidence (and supporting physical modeling) showing that stars and their planetary systems form from the collapse of immense interstellar gas and dust clouds, similar to the Horsehead
Nebula and Pipe Nebula. Our solar system formed from the collapse of such a cloud, and radiometric dating of the oldest meteorites puts the date of formation at about 4,568 million years ago (give or take a million years or so!).

Astronomy magazine subscribers can read the full answer for free. Just make sure you're registered with the website.

Already a subscriber? Register now!

Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below.
ADVERTISEMENT

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

ADVERTISEMENT
ADVERTISEMENT
asy_gravitational_eguide

Click here to receive a FREE e-Guide exclusively from Astronomy magazine.

Find us on Facebook