was there space before the big bang?
I tend to think of mass not only influencing space, but creating it. so at the big bang did space race out ahead of mass or just ride along with it?
One of the things I never really thought about, but learned recently. Perhaps this is obvious to many. The relative sizes of the sun and the moon, and their relative distances from Earth make it possible for the moon to "almost" completely block out the sun during a total eclipse, allowing us to...