|
Title: The observable universe is (Multiple Choice) Post by: einsteindude on Dec 1, 2014 The observable universe is
A) the minor portion of the universe we can observe. B) the part of the universe that is within the visible electromagnetic spectrum. C) part of the universe visible to the unaided eye. D) about 100 billion light years across. Title: Re: The observable universe is Post by: bSharp on Dec 2, 2014 Content hidden
|