Space has BILLIONS of Stars, Yet it is Cold. Why?

Science ABC
Science ABC
163.5 هزار بار بازدید - 5 سال پیش - Space is filled with countless
Space is filled with countless stars, all of which radiate enormous amounts of heat. These stars are tens of thousands of times bigger than our own sun. Still, space is considered to be cold. Why is that? If there are so many hot burning stars in space, why is space so cold?
From a purely technical standpoint, it’s not fair to say that space is cold in itself. Because technically, space is just a vacuum, and vacuum doesn't have a temperature of its own. It’s the objects in space that become cold in due time because they continuously lose heat due to radiation.
In addition to that, it’s not like all these stars are clumped up together. These stars are extremely hot, sure, but they are so far apart and have so much space between them that it’s simply impossible for them to heat up space. It is totally different from what you see when you look up at the night sky. In a nutshell, space is cold, despite having so many stars, because
space contains such an incomprehensibly large amount of
nothingness.



#science #animation #ColdSpace

References:
https://askdruniverse.wsu.edu/2015/09...
https://www.universetoday.com/77070/h...
http://physics.bu.edu/~duffy/py105/He...
https://scienceline.ucsb.edu/getkey.p...
https://www.space.com/14719-spacekids...


Original Article Link: https://www.scienceabc.com/nature/uni...

If you wish to buy/license this video, please write to us at [email protected].

Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )

SUBSCRIBE to get more such science videos!
@scienceabc

Follow us on Twitter!
Twitter: abc_science

Follow us on Facebook!
Facebook: sciabc

Follow our Website!
https://www.scienceabc.com
5 سال پیش در تاریخ 1398/06/28 منتشر شده است.
163,575 بـار بازدید شده
... بیشتر