More Than a Rising Star

by David F. Coppedge

On his widely popular Cosmos science program in 1980, Carl Sagan described our paltry existence in pathetic terms: "We live on an insignificant planet of a humdrum star, lost in a galaxy, tucked away in some forgotten corner of universe in which there are far more galaxies than people." Several developments since then have altered this perception dramatically.

First of all, earth's sun is not so humdrum. It belongs to a spectral class representing only 5% of all stars: a G2V yellow dwarf mainsequence variable. Many in this class pulsate much more radically than the sun, giving off deadly flares.

To continue click on the link below:

http://www.icr.org/article/more-than-rising-star/