To help us all out, "Good Morning America" has created a step-by-step on how to change your background and navigate some of the key Zoom tools. How to change your background 1.

Easy implementation: Can be enabled with a few clicks, ... Protects your privacy by obscuring personal or sensitive information that may be visible in the background, especially in a public space.

The cosmic microwave background (CMB) is primeval radiation emitted shortly after the Big Bang. Regarded as an 'echo' of the Big Bang, CMB fills the universe.

The Cosmic Microwave Background radiation tells us the age and composition of the universe. See what the CMB means for our understanding of the universe in this SPACE.com infographic.