Alert icon
We're changing our privacy policy. This stuff matters.  Learn more  Dismiss

The Sun's Death - Its Effects

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
82,044
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Mar 24, 2010

The Sun as a red giant
The Sun is expected to become a red giant in approximately five billion years. It is calculated that the Sun will become sufficiently large to engulf the current orbits of the solar system's inner planets, up to Earth, and its radius will expand to a minimum of 200 times its current value. The Sun will lose a significant fraction of its mass in the process of becoming a red giant, and there is a chance that Mars and all the outer planets will escape as their resulting orbits will widen. Mercury and most likely Venus will have been swallowed by sun's outer layer at this time. Earth's fate is less clear. Earth could technically achieve a widening of its orbit and could potentially maintain a sufficiently high angular velocity to keep it from becoming engulfed. In order to do so, its orbit needs to increase to between 1.3 AU (190,000,000 km) and 1.7 AU(250,000,000 km). However the results of studies announced in 2008 show that due to tidal interaction between sun and Earth, Earth would actually fall back into a lower orbit, and get engulfed and incorporated inside the sun before the sun reaches its largest size, despite the sun losing about 38% of its mass. Before this happens, Earth's biosphere will have long been destroyed by the Sun's steady increase in brightness as its hydrogen supply dwindles and its core contracts, even before the transition to a Red Giant. After just over 1 billion years, the extra solar energy input will cause Earth's oceans to evaporate and the hydrogen from the water to be lost permanently to space, with total loss of water by 3 billion years. Earth's atmosphere and lithosphere will become like that of Venus. Over another billion years, most of the atmosphere will get lost in space as well;[15] ultimately leaving Earth as a desiccated, dead planet with a surface of molten rock.

Category:

Travel & Events

Tags:

License:

Standard YouTube License

Link to this comment:

Share to:

Top Comments

  • Hmmm. I regret being immortal now.lol

  • DON'T WORRY! We'll just wish everything back with the Dragonballs. =]

see all

All Comments (398)

Sign In or Sign Up now to post a comment!
  • maybe if we get 2 people, man and women. Put them on a space ship and fly them to another similar planet like our own and get them to fuck, then humans can populate on that planet. We can all go and fuck each other and move away from this shitty corrupt planet and start fresh! no more worries or false predictions! :)

  • @Armagedddon1956 If your immortal then you can just float around in space waiting to crash into another planet or asteroid.

    Have fun!

  • I kind of cried because i love the earth and the sun, and even the solar system =(

  • FACT: if human race is still alive 5 billion years from now, we are propably moved to another planet far away from earth

  • well i will feel sorry for the babies who were just born in 5,000,000,000.

  • FACT: The Sun is actually swelling right this very second.

  • Ok, that's quite scary.

  • "If we survive for another billion years..."

    I am pretty sure we won't survive that long...at the rate we are going.

  • @icanseeuranus yep!!

  • @3kdark you'll be 80 in 5 billion years?

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more