Tag Archive for: hubble
At What Velocity Does the Universe Expand and Can It Be Faster than Light?
Neither of these questions makes sense in the form in which it was posed. To see why, let's start by thinking about how we know the universe is expanding.The…
LightCone8 Tutorial Part I
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LightCone 8 is a versatile tabulating/charting cosmological calculator, useful for understanding the expansion history of the universe (and even some future…
Inflationary Misconceptions and the Basics of Cosmological Horizons
Introduction
It is a common saying that during inflation "space expanded faster than the speed of light." This statement is meant to articulate the…