The Big Bang: The moment when our universe — everything in existence — began....Right? Turns out, it's not quite that simple. Today, when scientists talk about the Big Bang, they mean a period ...

A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have instead ...

If you think about the Big Bang as an explosion, this tiny interval is when the explosion in volume occurred. Protons and neutrons began to form after about a microsecond (10⁻⁶ seconds).

This afterglow—the "cosmic microwave background" (CMB), the relic radiation left behind by the Big Bang—has given astronomers insights into the birth of the universe and helped shape the ...

Nearly 400,000 years after the Big Bang, ... That light—the cosmic microwave background ... then stacked on top of those maps an additional optical survey of nearly 500,000 galaxies.

For decades, scientists have viewed the Big Bang as the starting point of space and time. But research into cosmic inflation—the lightning-fast expansion that likely occurred before the Big Bang ...

The Big Bang is the cosmological model of the universe whose primary assertion is that the universe has expanded into its current state from a primordial condition of enormous density and temperature.

The image shows the cosmic microwave background radiation visible 380,000 years after the Big Bang. ACT Collaboration; ESA/Planck Collaboration ...

The strongest evidence for the Big Bang came in 1964 when scientists at the Bell Labs discovered the cosmic microwave background radiation. Skip to content Introducing the all-new Astronomy.com Forum!

However, research on loop quantum cosmology offers a possible solution. It suggests that gravity, in effect, becomes repulsive. Consequently, loop quantum cosmology predicts that our present universe ...

Big bang theory is introduced 1927. Georges LeMaitre (1894-1966) ... He pursued the topic for some time, even suggesting that there ought to be some form of background radiation in the universe, ...