Guide to the Cosmos on Radio Hosted by Dr. Robert Piccioni

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Dark Energy: It's Most of What's Out There  What is this mysterious form of energy that dominates our universe and will control its fate? Click here for Broadcast. Image #1 Expansion rate of our universe has changed from 11 billion years ago (on the right) to today (on the left). It has increased from 6 billion years ago to today, as Dark Energy is accelerating the expansion. Data come from Type Ia supernovae seen by Hubble Space Telescope. Image #2 Cosmic Microwave Background (CMB) radiation shows very early universe was extremely uniform. Image #3 Empty space (vacuum) has energy and negative pressure due to quantum mechanics. This may be the Dark Energy that’s is ripping our universe apart. Image #4 Analysis of the CMB tells us a great deal about our universe. Normal matter is less than 5% of its total energy.