In around 4 - 5 billion years time the Sun will expand and engulf the Earth. How do we survive?
NewScientist has an interesting article entitled Moving the Earth: a planetary survival guide. They propose two possible methods to move the Earth away from the Sun's expanded surface: gradual nudges to the Earth's orbit through flybys of icy Kuiper belt objects or with a giant solar sail.
For some background and references on the future of life on Earth read my essay 4 billion years AD (pdf).
Subscribe to:
Post Comments (Atom)
Popular Posts
-
As the clock ticks over towards midnight and the time approaches when I shall rush up to the top of the driveway to watch the darkness... -
A road has too many choices A road can lead you astray Too many branches Too many chances Are you sure you want to go that way? ... -
Many were shocked at the election of Donald Trump tonight and at Brexit earlier. I'm not. The organisation I work for recently had its ...
Posts
No comments:
Post a Comment