UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
Does the sun grow or does it stay how it is right know?
Question Date: 2013-03-15
Answer 1:

The sun will pretty much stay like it is now for the next 4 billion years. Maybe it will get a little brighter, but after about 4 billion years from now, the sun will swell up and become a red giant star. Eventually the sun will run out of fuel and settle down to become a TINY white dwarf star.

Answer 2:

The sun is growing, very, very, slowly. This is because the sun is slowly using up its supply of hydrogen fuel in its core, and as this happens the outer layers start burning their hydrogen, which puffs them out.

The sun will not grow to the point where life on Earth becomes impossible for about a billion years yet. By that time, we should have found plenty of other stars and planets to colonize.

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use