READER QUESTION: My understanding is that nothing comes from nothing. For something to exist, there must be material or a component available, and for them to be available, there must be something ...

This logarithmic view of the Universe shows our solar system, the galaxy, the cosmic web, and the limits of what's observable out to a distance of 46.1 billion light-years away. This view is only ...

Konstantinos Dimopoulos does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Credit: Christine Daniloff / MIT / ESA / Hubble / NASA Many ...

You raise the issue of where all the antimatter has gone, assuming it was produced in equal amounts to matter when the universe began. It has been said that antimatter can’t be distinguished from ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How to Die in Space." First developed around a century ...

Venture back to the birth of space and time as NOVA probes the mystery of the Big Bang. The Big Bang is when the cosmos started and time itself began. With stunning animation based on space telescope ...